1996 Ohio Court of Appeals campaign In 1996, O'Neill won a seat on the
Ohio Eleventh District Court of Appeals with about 50% of the vote. He served from 1997 to 2007, when he resigned to run for Congress.
2006 Ohio Supreme Court campaign In 2006, O'Neill ran against O'Donnell again for a full-term on the Ohio Supreme Court. O'Neill lost again, by over 17%.
2008 Congressional campaign O'Neill lost in his 2008 bid for Ohio's 14th congressional district seat to incumbent Steve LaTourette by nearly 20%. • Race ranking and details from
CQ Politics • Campaign contributions from
OpenSecrets 2010 Congressional campaign On February 6, 2010, O'Neill announced that he would be running again as the
Democratic nominee for against LaTourette. O'Neill stated during his campaign his desire to expand the
Greater Cleveland Rapid Transit rail system. O'Neill lost the election by over 33%.
2012 Ohio Supreme Court campaign In 2012, for the third time, O'Neill ran for the Ohio Supreme Court. He won a two-way primary against Fanon Rucker, a judge on the Hamilton County Municipal Court. O'Neill received 72% of the vote and carried all but one of Ohio's 88 counties. In the general election, O'Neill defeated incumbent
Robert Cupp by four percent. O'Neill ran on a budget of just $4000 from his personal funds, a campaign he called "no money from nobody" and that was highlighted in a YouTube video with his twin sons.
2018 Ohio Gubernatorial campaign On October 29, 2017, O'Neill announced that he would join the Democratic primary for Ohio governor. During his announcement, he laid out a platform of minimum wage increases, tax incentives for solar power, mental health care expansion and marijuana legalization in Ohio. Less than a week later he announced that he will recuse himself from new Supreme Court cases and will resign by the February 7, filing deadline due to potential ethical conflicts.
Controversy On November 17, 2017, O'Neill stirred controversy by posting on
Facebook regarding allegations of sexual assault against U.S. Senator
Al Franken. He referred to those calling for Franken to resign as "dogs of war" and decried a "national feeding frenzy" against age-old sexual indiscretions. O'Neill went on to claim that he had been in sexual relationships with approximately fifty women. In response to these posts, his communications director resigned from his campaign. Multiple state officials, including Ohio Chief Justice
Maureen O'Connor, former state representative and fellow gubernatorial candidate
Connie Pillich,
Dayton mayor and fellow gubernatorial candidate
Nan Whaley, criticized O'Neill's comments, with Pillich and Whaley calling for him to resign from his position as justice. O'Neill initially called for his critics to "lighten up", saying that he intended to "elevate the discussion" on sexual assault. However, on November 19, he issued an apology for his remarks.
2026 Congressional campaign On June 25, 2025, O'Neill announced his intention to run for Ohio's 14th congressional district seat currently held by Congressman
David Joyce. ==Professional life==