Pete Buttigieg relentlessly mocked Republican vice presidential candidate Sen. J.D. Vance during his opening remarks at the Democratic National Convention. Buttigieg kicked off his speech, themed on “the right kind of politics” by poking Vance over having the opposite. After introducing himself with “you may know me from Fox News,” Buttigieg laid into Vance. Want more breaking political news? Click for the latest headlines at Raw Story. “Don’t even get me started on [Donald Trump’s] new running mate,” Buttigieg said, to a chorus of boos. At least Mike Pence was polite.” ALSO READ: ‘Stop the St…