Former Massachusetts Gov. Mitt RomneyWillard (Mitt) Mitt RomneyThis is how Republicans should shape message to win elections Maybe a Democratic mayor should be president Enforcing Trump's immigration plan will be harder than he thinks MORE's (R) presidential campaign released this video Sunday of Sen. John McCainJohn Sidney McCainTo woo black voters in Georgia, Dems need to change their course of action Senate panel again looks to force Trump’s hand on cyber warfare strategy Senate panel advances 6B defense policy bill 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.