U.S. House of Representatives
Elections (2018)
2018 Houlahan has said that one of the experiences that motivated her to run for Congress was her organization of a bus trip to the
Women's March in Washington, D.C., on January 21, 2017. Houlahan expected to face two-term Republican incumbent
Ryan Costello. However, Costello pulled out of the race after the
Supreme Court of Pennsylvania threw out Pennsylvania's congressional map as an unconstitutional partisan Republican gerrymander. While Costello was the only incumbent to retain his previous district number, it was made significantly more compact and turned from a Republican-leaning swing district into a strongly Democratic district. It lost its heavily Republican western portion around
Lebanon, which had only been connected to the rest of the district by way of a tendril through Berks County. Instead, it now took in almost all of Chester County (except for a sliver around
Birmingham Township that was drawn into the neighboring
5th district), along with the heavily Democratic southern portion of Berks County, including Reading. Houlahan took the Democratic nomination unopposed and faced first-time candidate
Greg McCauley in the general election. On November 6, 2018, Houlahan easily defeated McCauley, garnering 58.8% of the vote over McCauley's 41.1%. Houlahan was one of seven
Pennsylvania women running for the
U.S. House of Representatives in 2018, and one of four Democratic women to win, along with
Mary Gay Scanlon,
Madeleine Dean and
Susan Wild. She joined two other female military veterans in the House freshman class, former naval officers
Elaine Luria and
Mikie Sherrill. Upon taking office in January 2019, Houlahan became the first Democrat to represent a Chester County-based district since before the
Civil War (1857). The county had historically been very Republican but has trended Democratic (Dem. 42%; Rep. 40%; Ind. 18%) in recent years. Houlahan ran on a platform that included
healthcare,
job creation, and
campaign finance reform. Other campaign issues she identified included
education, family issues, and veteran's issues. Houlahan had a strong record of campaign fundraising, with donations totaling almost $5 million so far. She was also endorsed by many organizations, including
Emily's List,
Human Rights Campaign,
Giffords Law Center to Prevent Gun Violence, Project 100,
Vote Vets, and several other unions.
2020 Houlahan ran for re-election in 2020 against Republican John Emmons. She was reelected with over 56% of the vote.
2022 Houlahan had publicly expressed interest in a
2022 campaign for the United States Senate, but on June 8, she announced she would run for reelection to the House. After an uncontested primary, she ran against Republican Guy Ciarrocchi in the general election, winning reelection with over 58% of the vote.
2024 Houlahan ran unopposed in the 2024 Democratic primary and won reelection against Republican Neil Young Jr. with 56% of the vote.
Tenure On July 29, 2024, Houlahan was announced as one of six Democratic members of a bipartisan task force investigating the
attempted assassination of Donald Trump. On March 6, 2025, Houlahan was one of ten Democrats in Congress who joined all of their Republican colleagues in voting to censure Democratic congressman
Al Green for interrupting President
Donald Trump's
State of the Union Address. In November 2025, Houlahan was one of six Democratic lawmakers to be part of a
video telling servicemembers they can refuse illegal orders. In response the following day, President Trump posted on social media calling those in the video, including Houlahan, traitors who should be charged with
sedition punishable by death, and shared a social media post calling for them to be hanged.
Political positions Foreign policy In January 2019, she said she opposed withdrawing US troops from Syria. During the
Russo-Ukrainian War, Houlahan signed a letter advocating for President Biden to give
F-16 fighter jets to Ukraine. During the
Gaza war, Houlahan signed a letter expressing concern over Israeli Prime Minister
Benjamin Netanyahu's conduct of the war and the
humanitarian crisis in Gaza. It called for President Biden to further pressure the Israeli government to adjust their strategy regarding the war.
Healthcare Houlahan supports the government negotiating drug prices with the
pharmaceutical companies and a
public option, but opposes a
single payer healthcare system.
LGBT rights She supports
same-sex marriage, the
Equality Act. In 2019, she opposed
President Trump's memorandum banning transgender individuals from the military.
Market regulations In 2022, Houlahan was one of 16 Democrats to vote against the Merger Filing Fee Modernization Act of 2022, an antitrust package that would crack down on corporations for anti-competitive behavior.
National security Houlahan believes that critical and emerging technology leadership is a core component of U.S. national security, citing biotechnology as a priority for research and development. She has also focused on shoring up critical materials and resources, like transformers, and believes that American small businesses focused on critical and emerging technologies should have streamlined access to federal programs.
Caucus memberships •
Black Maternal Health Caucus • Servicewomen and Female Veterans Caucus (Co-Chair) • Women in STEM Caucus • For Country Caucus •
New Democrat Coalition • Honor and Civility Caucus • Congressional National Service Caucus • Veterans' Education Caucus •
Congressional LGBTQ+ Equality Caucus • Sustainable Energy & Environment Coalition •
Problem Solvers Caucus Committee assignments 117th Congress •
Committee on Armed Services •
Subcommittee on Intelligence, Emerging Threats and Capabilities •
United States House Armed Services Subcommittee on Readiness •
Committee on Foreign Affairs •
Subcommittee on Africa, Global Health, Global Human Rights and International Organizations •
Subcommittee on Asia, the Pacific and Nonproliferation •
Committee on Small Business 118th Congress •
Committee on Armed Services •
Subcommittee on Military Personnel •
Subcommittee on Strategic Forces •
Permanent Select Committee on Intelligence •
Defense Intelligence and Overhead Architecture –
Ranking member ==Electoral history==