In part 67 of his 434-installment series, “Better Know a District,” comedian/pundit Stephen Colbert takes a look at Minnesota’s 5th congressional district — “The Fightin’ Fifth” — and interviews its representative, Congressman Keith Ellison. Not one to shy from controversy, Colbert takes the issues head on, from Ellison’s criticism of his colleague Rep. Michele Bachmann to the ever-present rumors that Ellison may be Mitt Romney’s VP pick.