Catherine Allison Russo (born October 15, 1976) is an American Democratic politician currently serving as a member of the Ohio House of Representatives. She represents the 7th district, which consists of portions of Columbus, and Upper Arlington in Franklin County. Russo formerly served as Ohio House Minority Leader from January 2022 to June 2025. Russo also served on the Ohio Redistricting Commission.
In August 2025, Russo announced that she would run for Ohio Secretary of State in 2026. In February 2026, she filed her campaign petition with signatures collected from voters in 71 Ohio counties.
State Representative Allison Russo served as Minority Leader of the Ohio House of Representatives during a period in which Republicans held a supermajority in the chamber.
Russo served as House Minority Leader during the 2022 and 2024 Ohio House election cycles. In the 2022 elections, Republicans maintained a 67âÂÂ32 majority in the Ohio House after a federal three-judge panel ordered the state to use a previously invalidated legislative map for the election.
Following the adoption of new legislative maps in October 2023, the 2024 elections resulted in a 65âÂÂ34 Republican majority in the Ohio House.
In Ohio House District 38, Republican Bill Roemer won re-election in both 2022 and 2024 by margins of fewer than five percentage points.
During RussoâÂÂs tenure as House Minority Leader, House Democrats opposed a Republican-led effort to raise the threshold for approving constitutional amendments in Ohio from a simple majority to 60 percent. The measure was placed on the ballot during a special election held in August 2023. Ohio voters rejected the proposal.
In 2023, during her tenure as House Minority Leader, Russo was among House Democrats who supported Republican Jason Stephens in his successful bid to become Speaker of the Ohio House for the two-year biennium. The outcome drew opposition from some members of the House Republican caucus.
On June 5, 2025, Russo announced that she would step down as House Minority Leader, stating that the caucus needed âÂÂample time to prepare for the 2026 election cycle.â She stepped down later that month and continued serving as a member of the Ohio House. Representative Dani Isaacsohn was subsequently elected by the Democratic caucus to succeed her.
Outside of public office, Russo has worked in health policy consulting. She has served as a research director at Kennell and Associates, Inc. Her employment with the firm began in 2010 and has continued alongside her service in the Ohio House of Representatives.
In September 2023, the Ohio Redistricting Commission unanimously approved new Ohio House and Senate maps during a late-night session, with House Minority Leader Allison Russo joining Republican members and Senate Minority Leader Nickie Antonio in support.
In subsequent litigation, the Supreme Court of Ohio dismissed pending challenges to the September 2023 maps, allowing them to remain in effect.
During her 2026 campaign for Ohio Secretary of State, RussoâÂÂs vote for the 2023 maps drew criticism from some voting-rights advocates and Democratic activists. The criticism focused on her support for a plan backed by Republican members of the commission. In an interview with Signal Ohio, Russo defended her vote as âÂÂthe best of two bad options.âÂÂ
In January 2025, a former attorney for the Ohio House Democratic Caucus filed a federal lawsuit alleging gender discrimination and retaliation related to her employment. Russo was serving as House Minority Leader at the time the lawsuit was filed.
In a March 5, 2026 deposition in Forhan v. Russo, Russo was questioned about an employment discrimination complaint filed by former staff member Sarah Cherry, including an allegation that Cherry had been pushed against a wall by another staffer. Russo testified that she asked the accused whether the allegation was true and was told it was not, and that she did not personally conduct an investigation, instead consulting legal counsel. She further testified that she did not believe CherryâÂÂs claims were substantiated. During the deposition, counsel repeatedly instructed that questioning related to CherryâÂÂs allegations was outside the scope of the case due to a pending Equal Employment Opportunity Commission (EEOC) proceeding. The deposition concluded after Russo left the proceeding while disputes over questioning remained on the record.
In November 2023, House Democratic leadership circulated a 19-page memorandum documenting allegations of abusive and threatening behavior by Northeast Ohio state Representative Elliot Forhan. The memorandum summarized complaints raised by colleagues, constituents, and community organizations and outlined disciplinary actions that resulted in Forhan being stripped of nearly all lawmaker privileges and removed from the House Democratic caucus. House leadership also requested that Forhan complete bias training and mediation efforts prior to his removal. That same month, Representative Juanita Brent filed a civil protection order against Forhan, citing concerns of stalking and intimidation.
In November 2024, Forhan filed a civil defamation lawsuit in Franklin County Common Pleas Court against multiple Ohio Statehouse leaders, including members of House Democratic leadership. The complaint alleged that false statements were made to law enforcement and others in connection with the internal investigation that led to his removal from the caucus. Forhan denied the underlying allegations and asserted that the actions taken against him were defamatory and damaging to his reputation. The lawsuit sought monetary damages and injunctive relief.
In September 2025, a judge dismissed most of ForhanâÂÂs claims, ruling that the majority of the alleged conduct constituted protected political activity or otherwise failed to meet the legal standard for defamation. The court allowed limited portions of the case to proceed, narrowing the scope of the lawsuit.
In July 2025, Forhan filed a public-records lawsuit against the Ohio House of Representatives in the Ohio Court of Claims, challenging the HouseâÂÂs response to public-records requests made under the Ohio Public Records Act. The requests sought internal investigative materials related to two investigations conducted during his tenure in office. While the House produced certain responsive documents, it withheld draft investigative reports prepared by outside counsel and other materials.
In October 2025, the Court of Claims adopted a report and recommendation from a special master, concluding that the withheld draft reports constituted public records under Ohio law and ordering their production, along with reimbursement of certain costs. The court declined to require disclosure of investigatorsâ witness interview documentation, finding that those materials did not qualify as public records. Both Forhan and the Ohio House appealed portions of the decision to the Tenth District Court of Appeals; as of early 2026, a hearing date had not been scheduled.
Russo faced off against Republican candidate Erik Yassenoff in the general election on November 6, 2018, winning with 57 percent of the vote, flipping the seat from Republican control to Democratic control. In 2020, she successfully defended her seat against Republican Pat Manley, winning with 58% of the vote. After being redrawn into the 7th district, Russo was again re-elected to the Ohio House in 2022 and 2024, running uncontested in both elections.
Russo serves on the following committees:
In May 2021, Republican Representative Steve Stivers resigned from Congress to become CEO of the Ohio Chamber of Commerce, triggering a special election for the vacant seat. Russo won the Democratic primary in August against Greg Betts, and advanced to the general election against Republican lobbyist Mike Carey. The election was held on November 2, 2021, with Carey defeating Russo by a margin of 58.3 percent to 41.7 percent. Despite the loss, Russo received the highest vote share for a Democrat in the district since it was redrawn in 2012.