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  • Rep. Tammy Duckworth, D-Ill., and Republican candidate Larry Kaifesh field...

    Nancy Stone, Chicago Tribune

    Rep. Tammy Duckworth, D-Ill., and Republican candidate Larry Kaifesh field questions from the Tribune Editorial Board on Sept. 22, 2014.

  • A television news team interviews U.S. Rep. Tammy Duckworth on...

    Chris Walker, Chicago Tribune

    A television news team interviews U.S. Rep. Tammy Duckworth on Jan. 19, 2013. She was at the national Day of Service, one of the events leading up to the inauguration of President Barack Obama.

  • Vice President Kamala Harris smiles after greeting Sen. Tammy Duckworth...

    Susan Walsh / AP

    Vice President Kamala Harris smiles after greeting Sen. Tammy Duckworth in the Rose Garden of the White House in Washington on May 17, 2022, during a reception to celebrate Asian American, Native Hawaiian, and Pacific Islander Heritage Month.

  • U.S. Rep. Tammy Duckworth, D-Ill., appears at the Illinois State...

    Seth Perlman, AP

    U.S. Rep. Tammy Duckworth, D-Ill., appears at the Illinois State Fair Governor's Day brunch on Aug. 13, 2014, in Springfield.

  • Sen. Tammy Duckworth speaks at a health care rally, June...

    Brian Cassella / Chicago Tribune

    Sen. Tammy Duckworth speaks at a health care rally, June 21, 2017, at the West Front Lawn of the U.S. Capitol.

  • U.S. Rep. Tammy Duckworth shows off her baby bump Monday...

    Stacey Wescott, Chicago Tribune

    U.S. Rep. Tammy Duckworth shows off her baby bump Monday at the Labor Day Parade in Schaumburg on Sept. 1, 2014. She had a baby girl Nov. 18, 2014.

  • U.S. Sen. Tammy Duckworth waves to the crowd during the...

    Chris Sweda / Chicago Tribune

    U.S. Sen. Tammy Duckworth waves to the crowd during the Pride Parade on Chicago's North Side, June 26, 2022.

  • U.S. Sen. Tammy Duckworth embraces her family after giving an...

    Michael Blackshire / Chicago Tribune

    U.S. Sen. Tammy Duckworth embraces her family after giving an election night victory speech at Adler Planetarium on Nov. 8, 2022.

  • Lt. Gov. Juliana Stratton, from left, Gov. J.B. Pritzker and...

    Vashon Jordan Jr. / Chicago Tribune

    Lt. Gov. Juliana Stratton, from left, Gov. J.B. Pritzker and U.S. Sen. Tammy Duckworth march in the 92nd annual Bud Billiken Parade in Chicago's Bronzeville neighborhood on Aug. 14, 2021.

  • U.S. Rep. Tammy Duckworth gives her former helicopter crew chief,...

    Stacey Wescott, Chicago Tribune

    U.S. Rep. Tammy Duckworth gives her former helicopter crew chief, Philip Haffron, a hug after delivering her election victory speech at Boomers Stadium in Schaumburg on Nov. 4, 2014.

  • Duckworth went 13 miles in her hand-cranked chair on Aug....

    David Pierini, Chicago Tribune

    Duckworth went 13 miles in her hand-cranked chair on Aug. 23, 2009. She still fought "phantom limb pain" and couldn't use her right hand as well as she would have liked.

  • Tammy Duckworth, trains on her hand-cranked racing chair on the...

    David Pierini, Chicago Tribune

    Tammy Duckworth, trains on her hand-cranked racing chair on the Capital Crescent Trail in Washington D.C. on Aug. 23, 2009. Her husband, Bryan Bowlsbey bikes behind her.

  • U.S. Rep.-elect Tammy Duckworth and her husband, Bryan Bowlsbey, soak...

    Stacey Wescott, Chicago Tribune

    U.S. Rep.-elect Tammy Duckworth and her husband, Bryan Bowlsbey, soak up her victory over freshman Republican Rep. Joe Walsh at her post-election party in Elk Grove Village on Nov. 6, 2012.

  • New York National Guard member Vincent Scalise speaks with Sen....

    Anna Moneymaker/The New York Times

    New York National Guard member Vincent Scalise speaks with Sen. Tammy Duckworth on March 5, 2021, outside the Senate chambers during a series of votes on amendments to President Joe Biden's relief bill.

  • U.S. Rep. Tammy Duckworth poses with campaign workers after her...

    Stacey Wescott, Chicago Tribune

    U.S. Rep. Tammy Duckworth poses with campaign workers after her election victory speech at Boomers Stadium in Schaumburg on Nov. 4, 2014.

  • President-elect Barack Obama hugs Illinois Department of Veterans' Affairs Director...

    Zbigniew Bzdak, Chicago Tribune

    President-elect Barack Obama hugs Illinois Department of Veterans' Affairs Director Tammy Duckworth after laying a wreath at the Bronze Soldier Memorial near Soldier Field in Chicago on Nov. 11, 2008.

  • U.S. Sen. Tammy Duckworth obliges for a selfie with a...

    Antonio Perez / Chicago Tribune

    U.S. Sen. Tammy Duckworth obliges for a selfie with a voter outside Union Station in Chicago following her re-election to the Senate on Nov. 9, 2022.

  • U.S. Rep.-elect Tammy Duckworth of the 8th Congressional District thanks...

    Jose M. Osorio, Chicago Tribune

    U.S. Rep.-elect Tammy Duckworth of the 8th Congressional District thanks voters and commuters at the Schaumburg train station on Nov. 7, 2012.

  • U.S. Sen. Tammy Duckworth speaks Sept. 15, 2017, to newly...

    Chris J. Walker / Chicago Tribune

    U.S. Sen. Tammy Duckworth speaks Sept. 15, 2017, to newly sworn-in U.S. citizens during a Loop ceremony dedicated to public servants becoming citizens. Many were sailors from the Training Support Center at Naval Station Great Lakes in Lake County.

  • Tammy Duckworth pilots a plane over rural Virginia during a...

    David Pierini / Chicago Tribune

    Tammy Duckworth pilots a plane over rural Virginia during a lesson on Aug. 23, 2009. Duckworth flies again nearly five years after a rocket-propelled grenade shot down the Black Hawk helicopter she was piloting in Iraq.

  • U.S. Rep. Tammy Duckworth heads onstage to speak at Chicago...

    Zbigniew Bzdak, Chicago Tribune

    U.S. Rep. Tammy Duckworth heads onstage to speak at Chicago Ideas Week at Morningstar in Chicago on Oct. 13, 2014.

  • Sen. Tammy Duckworth, D-Ill., pays her respects as the flag-draped...

    Tom Williams/AP

    Sen. Tammy Duckworth, D-Ill., pays her respects as the flag-draped casket bearing the remains of Hershel W. "Woody" Williams, lies in honor in the U.S. Capitol in Washington on July 14, 2022. Williams, the last remaining Medal of Honor recipient from World War II, died at age 98.

  • U.S. Rep. Tammy Duckworth makes her way backstage on Jan....

    Chris Walker, Chicago Tribune

    U.S. Rep. Tammy Duckworth makes her way backstage on Jan. 19, 2013, before speaking at a service summit on the National Mall in Washington during the National Day of Service, one of President Barack Obama's inauguration events.

  • Illinois' incoming members of the U.S. House at the Capitol...

    Ryan Rayburn, for the Chicago Tribune

    Illinois' incoming members of the U.S. House at the Capitol for orientation on Nov. 15, 2012, are, from left, Brad Schneider, Rodney Davis, Cheri Bustos, William Enyart, Tammy Duckworth and Bill Foster.

  • U.S. Rep. Tammy Duckworth talks with supporters at McArthur's Restaurant...

    Michael Tercha / Chicago Tribune

    U.S. Rep. Tammy Duckworth talks with supporters at McArthur's Restaurant while campaigning for the Senate on Nov. 6, 2016.

  • U.S. Rep. Tammy Duckworth, center, and Mayor Rahm Emanuel, right...

    John J. Kim, Chicago Tribune

    U.S. Rep. Tammy Duckworth, center, and Mayor Rahm Emanuel, right of Duckworth, lead off Chicago's Memorial Day Parade on State Street on May 24, 2014.

  • Sen. Barack Obama attends a day-before-the election rally for Democratic...

    Antonio Perez, Chicago Tribune

    Sen. Barack Obama attends a day-before-the election rally for Democratic Congressional Candidate Tammy Duckworth as they listen to Sen. Dick Durbin on Nov. 6, 2006.

  • Sen. Tammy Duckworth at a 50th anniversary celebration of Fermilab...

    Brian Cassella / Chicago Tribune

    Sen. Tammy Duckworth at a 50th anniversary celebration of Fermilab held June 20, 2017, at the U.S. Capitol.

  • Sen. Tammy Duckworth and Chicago City Clerk Anna Valencia, a...

    Brian Cassella / Chicago Tribune

    Sen. Tammy Duckworth and Chicago City Clerk Anna Valencia, a candidate for Illinois secretary of state, cheer during a voting rally at Welles Park in Chicago on June 27, 2022, the day before primary election day.

  • U.S. Sen. Tammy Duckworth appears at a press conference at...

    E. Jason Wambsgans / Chicago Tribune

    U.S. Sen. Tammy Duckworth appears at a press conference at at Chicago's Ping Tom Memorial Park following Vice President Kamala Harris's visit on April 6, 2021.

  • Tammy Duckworth, escorted by friend Scott Waddle, enters a ballroom...

    Stacey Wescott, Chicago Tribune

    Tammy Duckworth, escorted by friend Scott Waddle, enters a ballroom after defeating freshman Republican Rep. Joe Walsh, to give her victory speech in Elk Grove Village on Nov. 6, 2012.

  • Illinois U.S. Sen. Tammy Duckworth gives a speech at Adler...

    Michael Blackshire / Chicago Tribune

    Illinois U.S. Sen. Tammy Duckworth gives a speech at Adler Planetarium after winning a second term for her senate seat on Nov. 8, 2022.

  • Physical therapist Bunnie Nychoff helps Army National Guard Major Tammy...

    Jessica Tefft, for the Chicago Tribune

    Physical therapist Bunnie Nychoff helps Army National Guard Major Tammy Duckworth walk with a new prosthetic right leg as her husband Brian Bowslbey watches how it fits at Walter Reed Army Medical Center in Washington on April 28, 2005.

  • Sen. Tammy Duckworth arrives at the Capitol with her new...

    J. Scott Applewhite/AP

    Sen. Tammy Duckworth arrives at the Capitol with her new daughter, Maile, bundled against the wind, in Washington on April 19, 2018. In a historic change in Senate rules, the lawmakers decided to allow babies of members on the floor during votes.

  • Sen. Tammy Duckworth marches June 30, 2019, at the 50th...

    Brian Cassella / Chicago Tribune

    Sen. Tammy Duckworth marches June 30, 2019, at the 50th Chicago Pride Parade.

  • Sen. Tammy Duckworth, D-Ill., speaks at a rally held by...

    Mariam Zuhaib/AP

    Sen. Tammy Duckworth, D-Ill., speaks at a rally held by March Fourth near the U.S. Capitol on July 13, 2022, in Washington, that was calling for universal background checks for guns and an assault weapons ban in the wake of continued mass shootings.

  • Democratic U.S. Senate candidate Tammy Duckworth zooms along LaSalle Street...

    Stacey Wescott / Chicago Tribune

    Democratic U.S. Senate candidate Tammy Duckworth zooms along LaSalle Street in the 2016 Bank of America Chicago Marathon on Oct. 9, 2016.

  • Democrat challenger Tammy Duckworth, left, and Republican Rep. Joe Walsh...

    Terrence Antonio James, Chicago Tribune

    Democrat challenger Tammy Duckworth, left, and Republican Rep. Joe Walsh debate each other on May 11, 2012, at the CLTV studio in Chicago.

  • U.S. Rep. Tammy Duckworth attends a congressional ceremony to mark...

    MANDEL NGAN, AFPGetty Images

    U.S. Rep. Tammy Duckworth attends a congressional ceremony to mark the 50th anniversary of the Vietnam War on July 8, 2015.

  • Sen. Tammy Duckworth greets people after speaking at a health...

    Brian Cassella / Chicago Tribune

    Sen. Tammy Duckworth greets people after speaking at a health care rally hosted by the American Optometric Association on June 21, 2017, near the U.S. Capitol.

  • U.S. Rep. Tammy Duckworth, third from left, volunteers as part...

    Chris Walker, Chicago Tribune

    U.S. Rep. Tammy Duckworth, third from left, volunteers as part of the National Day of Service on Jan. 19, 2013, finishing college banners at Ideal Academy Public Charter School in Washington, D.C.

  • U.S. Rep. Tammy Duckworth, left, is introduced by Gov. Pat...

    Chris Walker, Chicago Tribune

    U.S. Rep. Tammy Duckworth, left, is introduced by Gov. Pat Quinn at a news conference Feb. 7, 2014, at St. Alexius Medical Center in Hoffman Estates.

  • Israeli Prime Minister Benjamin Netanyahu greets Rep. Tammy Duckworth, D-Ill.,...

    Nicholas Kamm, AFP/Getty Images

    Israeli Prime Minister Benjamin Netanyahu greets Rep. Tammy Duckworth, D-Ill., before he addresses a joint meeting of Congress in Washington on March 3, 2015.

  • Army National Guard Captain Tammy Duckworth takes her walking canes...

    Abel Uribe, Chicago Tribune

    Army National Guard Captain Tammy Duckworth takes her walking canes from her husband Bryan Bowlsbey as she arrives home in Hoffman Estates on June 3, 2005. Duckworth and her helicopter crew were shot down in Iraq. She lost both of her legs.

  • U.S. Rep. Tammy Duckworth, center, and her husband, Army National...

    Chris Walker, Chicago Tribune

    U.S. Rep. Tammy Duckworth, center, and her husband, Army National Guard Maj. Bryan Bowlsbey, chat during cocktail hour before the Illinois Inaugural Gala in Washington, D.C.

  • U.S. Rep. Tammy Duckworth speaks on Jan. 19, 2013, at...

    Chris Walker, Chicago Tribune

    U.S. Rep. Tammy Duckworth speaks on Jan. 19, 2013, at a service summit on the National Mall in Washington during the National Day of Service, part of the events surrounding President Barack Obama's inauguration.

  • U.S. Rep. Tammy Duckworth arrives to give her victory speech...

    Stacey Wescott, Chicago Tribune

    U.S. Rep. Tammy Duckworth arrives to give her victory speech after being reelected Nov. 4, 2014.

  • U.S. Rep. Tammy Duckworth said her military record and recovery would...

    Nancy Stone / Chicago Tribune

    U.S. Rep. Tammy Duckworth said her military record and recovery would nullify any effort by U.S. Sen. Mark Kirk, a former Naval Reserve officer, to play up his military service and medical recovery during the race for the Senate seat.

  • Cook County President Toni Preckwinkle, center, introduces U.S. Sen. Tammy...

    Abel Uribe / Chicago Tribune

    Cook County President Toni Preckwinkle, center, introduces U.S. Sen. Tammy Duckworth to her health care staff and other local leaders Feb. 27, 2021, before touring the vaccination site at a Triton College building in River Grove.

  • Sen. Tammy Duckworth waves in a parade during the first...

    Armando L. Sanchez / Chicago Tribune

    Sen. Tammy Duckworth waves in a parade during the first day of the Du Quoin State Fair on Aug. 26, 2022, in Du Quoin.

  • U.S. Rep. Tammy Duckworth speaks Jan. 19, 2013, at a...

    Chris Walker, Chicago Tribune

    U.S. Rep. Tammy Duckworth speaks Jan. 19, 2013, at a service summit on the National Mall in Washington. The event took place during the National Day of Service leading up to President Barack Obama's inauguration.

  • Sen. Tammy Duckworth departs the U.S. Capitol following the conclusion...

    Brandon Bell/Getty

    Sen. Tammy Duckworth departs the U.S. Capitol following the conclusion of the second impeachment trial of former President Donald Trump on Feb. 13, 2021.

  • U.S. Sen. Tammy Duckworth waves to the crowd before giving...

    Michael Blackshire / Chicago Tribune

    U.S. Sen. Tammy Duckworth waves to the crowd before giving a speech on the midterm elections at Jones Elementary School on Nov. 5, 2022 in Joliet.

  • U.S. Rep. Tammy Duckworth talks to Vietnam veteran Glen Warner...

    Zbigniew Bzdak / Chicago Tribune

    U.S. Rep. Tammy Duckworth talks to Vietnam veteran Glen Warner during a campaign stop at VFW Post 4829 in Shelbyville.

  • U.S. Sen. Tammy Duckworth departs after speaking Aug. 24, 2022,...

    Brian Cassella / Chicago Tribune

    U.S. Sen. Tammy Duckworth departs after speaking Aug. 24, 2022, at Schuler Farms in Lexington, Illinois, during the Illinois Agricultural Legislative Roundtable.

  • Tammy Duckworth rests in her wheel chair between rehabilitation exercises...

    David Carson, St. Louis Post-Dispatch

    Tammy Duckworth rests in her wheel chair between rehabilitation exercises at Walter Reed Medical Center in Washington, D.C., on June 26, 2005. Duckworth is learning to walk with prosthetic legs and building strength in her injured right arm.

  • U.S. Rep. Tammy Duckworth departs Tribune Tower on Oct. 3,...

    Brian Cassella / Chicago Tribune

    U.S. Rep. Tammy Duckworth departs Tribune Tower on Oct. 3, 2016, after a U.S. Senate debate.

  • U.S. Sen. Tammy Duckworth thanks voters outside Union Station following...

    Antonio Perez / Chicago Tribune

    U.S. Sen. Tammy Duckworth thanks voters outside Union Station following her victory in Tuesday's midterm elections, Nov. 9, 2022.

  • U.S. Sen. Tammy Duckworth greets people before speaking on Aug....

    Brian Cassella / Chicago Tribune

    U.S. Sen. Tammy Duckworth greets people before speaking on Aug. 24, 2022, at Schuler Farms in Lexington, Illinois, during the Illinois Agricultural Legislative Roundtable.

  • Illinois politicians, including U.S. Sen. Tammy Duckworth, march on Columbus...

    Zbigniew Bzdak / Chicago Tribune

    Illinois politicians, including U.S. Sen. Tammy Duckworth, march on Columbus Drive in observance of Juneteenth at Grant Park in Chicago on June 19, 2020.

  • Rep. Tammy Duckworth, joined by husband Bryan Bowlsbey, participates in...

    Brian Cassella, Chicago Tribune

    Rep. Tammy Duckworth, joined by husband Bryan Bowlsbey, participates in a ceremonial swearing-in on Jan. 3, 2013, at the Disabled American Veterans Headquarters.

  • U.S. Rep. Tammy Duckworth meets with campaign volunteers and staff...

    Stacey Wescott, Chicago Tribune

    U.S. Rep. Tammy Duckworth meets with campaign volunteers and staff at her Elgin headquarters on Election Day on Nov. 4, 2014.

  • U.S. Sen. Tammy Duckworth talks with marchers before a Juneteenth...

    Zbigniew Bzdak / Chicago Tribune

    U.S. Sen. Tammy Duckworth talks with marchers before a Juneteenth march on Columbus Drive in Grant Park on June 19, 2020.

  • Sen. Tammy Duckworth travels with staff between meetings, June 20,...

    Brian Cassella / Chicago Tribune

    Sen. Tammy Duckworth travels with staff between meetings, June 20, 2017, at the U.S. Capitol in Washington.

  • U.S. Sen. Tammy Duckworth greets people after speaking at Schuler...

    Brian Cassella / Chicago Tribune

    U.S. Sen. Tammy Duckworth greets people after speaking at Schuler Farms in Lexington, Illinois, during the Illinois Agricultural Legislative Roundtable on Aug. 24, 2022.

  • U.S. Sen. Tammy Duckworth thanks voters following her election night...

    Antonio Perez / Chicago Tribune

    U.S. Sen. Tammy Duckworth thanks voters following her election night victory outside Union Station on Nov. 9, 2022.

  • Tammy Duckworth does a pre-flight check of her aircraft at...

    David Pierini, Chicago Tribune

    Tammy Duckworth does a pre-flight check of her aircraft at Manassas Regional Airport in Bristol, Virginia, on Aug. 23, 2009, where she is taking lessons to get a fixed-wing license.

  • Tammy Duckworth, director of the Department of Veterans Affairs for...

    Candice C. Cusic, Chicago Tribune

    Tammy Duckworth, director of the Department of Veterans Affairs for Illinois, attends the Nov. 11, 2008, Veterans Day Ceremony at Jesse Brown VA Medical Center.

  • Tammy Duckworth, a veteran helicopter pilot wounded in Iraq and...

    Ron Edmonds, Associated Press

    Tammy Duckworth, a veteran helicopter pilot wounded in Iraq and now director of the Illinois Department of Veterans Affairs, speaks at the Democratic National Convention in Denver on Aug. 27, 2008.

  • Sen. Tammy Duckworth, D-Ill., holds a photo of a tweet...

    Amanda Andrade-Rhoades/AP

    Sen. Tammy Duckworth, D-Ill., holds a photo of a tweet depicting a child holding a gun during a news conference the Capitol in Washington on July 20, 2022, surrounded by anti-gun-violence advocates, many of whom have a connection to the recent Highland Park shootin.

  • U.S. Rep. Tammy Duckworth arrives to participate in Chicago Ideas...

    Zbigniew Bzdak, Chicago Tribune

    U.S. Rep. Tammy Duckworth arrives to participate in Chicago Ideas Week at Morningstar in Chicago on Oct. 13, 2014.

  • U.S. Rep. Tammy Duckworth and U.S. Sen. Mark Kirk wait...

    John J. Kim / Chicago Tribune

    U.S. Rep. Tammy Duckworth and U.S. Sen. Mark Kirk wait for their third debate to begin at ABC-Ch. 7 studios in Chicago on Nov. 4, 2016.

  • Sen.-elect. Tammy Duckworth greets commuters Nov. 9, 2016, outside the...

    Erin Hooley / Chicago Tribune

    Sen.-elect. Tammy Duckworth greets commuters Nov. 9, 2016, outside the Millennium Park Metra station in Chicago the day after she defeated Republican Mark Kirk.

  • U.S. Rep. Tammy Duckworth, right, leaves the National Mall on...

    Chris Walker, Chicago Tribune

    U.S. Rep. Tammy Duckworth, right, leaves the National Mall on Jan. 19, 2013, after speaking at a service summit in Washington during the National Day of Service.

  • U.S. Sen. Tammy Duckworth embraces Sen. Dick Durbin before giving...

    Michael Blackshire / Chicago Tribune

    U.S. Sen. Tammy Duckworth embraces Sen. Dick Durbin before giving a speech at Adler Planetarium on Nov. 8, 2022 in Chicago.

  • U.S. Rep. Tammy Duckworth rides in Chicago's 46th annual Pride...

    Nancy Stone, Chicago Tribune

    U.S. Rep. Tammy Duckworth rides in Chicago's 46th annual Pride Parade on June 28, 2015.

  • U.S. Rep. Tammy Duckworth of Illinois, left, slips past U.S....

    Chris Walker, Chicago Tribune

    U.S. Rep. Tammy Duckworth of Illinois, left, slips past U.S. Rep. John Delaney, a fellow freshman Democrat, as they volunteer Jan. 19, 2013, at Ideal Academy Public Charter School in Washington as part of the National Day of Service.

  • Tammy Duckworth greets supporters at her U.S. Senate party at...

    Chris Sweda / Chicago Tribune

    Tammy Duckworth greets supporters at her U.S. Senate party at a Marriott in downtown Chicago on Nov. 8, 2016.

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House Democrat Tammy Duckworth’s support for the Iran nuclear deal, announced Wednesday, would inject an electric issue for the 2016 election if she wins her party’s nomination to challenge Republican Sen. Mark Kirk.

Kirk is one of the most vocal Senate critics of the deal.

Duckworth, along with fellow Democratic House members Bill Foster of Naperville and Mike Quigley of Chicago, wrote an op-ed posted on chicagotribune.com explaining their support for the deal.

Duckworth, from Schaumburg, said she reviewed the agreement, attended briefings with national security experts and heard from “hundreds” of constituents before reaching a decision.

“I have no illusions about the authoritarian Iranian regime,” she said in a statement. “Iran is our enemy, it is Israel’s enemy and it is the enemy of all nations that seek peace and stability. But Iran’s destabilizing role in the region would be much greater if it could obtain nuclear weapons. Therefore preventing a nuclear armed Iran must be our primary goal. …

“While not perfect, I believe the nuclear agreement provides the United States and our allies with the most realistic and effective course of action currently available to stop Iran’s nuclear weapons program.”

The GOP-led House is expected to pass a resolution of disapproval, but the deal has enough overall congressional support to prevent opponents from blocking the pact’s implementation.

Quigley said he had healthy skepticism about any deal with Iran but that this one was based on “unprecedented access, strict verification and strong enforcement mechanisms to punish Iran if they defy the agreement.”

With the newly announced support from Duckworth, Quigley and Foster, only House Democrat Dan Lipinski of Western Springs is breaking ranks with his party by opposing the deal.

Duckworth is among Democrats trying to oust Kirk next year. Both are military veterans. She is a double amputee from the Iraq War. He survived a stroke in 2012.

They are in opposite camps on Iran, as Kirk has long championed efforts to ratchet up sanctions against the Islamic Republic and condemned its financial support of terrorist groups in the region.

In 2013, one of Kirk’s early forays off Capitol Hill after his stroke was to address a conference put on by the American Israel Public Affairs Committee, the pro-Israel lobby. He had a message for Tehran dictators, saying, “I’m back.”

Democrat Andrea Zopp, who supports the Iran deal, also is running for Kirk’s seat. One other Democrats is exploring a bid: and state Sen. Napoleon Harris of Harvey.

kskiba@tribpub.com

Twitter @KatherineSkiba