Despite being handily defeated in his run for reelection, longtime Sen. Sherrod Brown (D-OH) said on Sunday that Sen.-elect Bernie Moreno’s (R-OH) flipping of his seat wasn’t “clean” and was fueled by “lies” from negative ads run during the election cycle.

Speaking with CNN’s Manu Raju, Brown was asked about what specifically went wrong in his Senate race in the Buckeye State, in which he lost to Moreno by over 3 percentage points, or around 200,000 votes, 50.2% to 46.4%. Brown had held his Ohio Senate seat since 2007.