Former Massachusetts Gov. Mitt RomneyWillard (Mitt) Mitt RomneyJust five GOP senators vote Trump impeachment trial is constitutional Senate committee advances Biden's DHS pick despite Republican pushback Press: The case against Citizen Trump MORE's (R) presidential campaign released this video Sunday of Sen. John McCainJohn Sidney McCainOn The Money: GOP digs in on defending Trump tax cuts | Democrats bullish on raising minimum wage | Financial sector braces for Biden's consumer bureau pick No. 2 Senate Democrat says minimum wage can be increased with simple majority vote State-level Republicans wracked by division after Trump's loss MORE (R-Ariz.) campaigning for Romney in the 2002 Massachusetts gubernatorial race.

McCain, introducing Romney at a 2002 campaign event, says Romney is a man of "unimpeachable integrity," that he is proud to be in Romney's company, and that he is committed to Romney's race. McCain's comments draw applause and laughter from Romney's supporters.