Andre Carson has assumed his seat in the House of Representatives representing Indiana’s seventh district as the second Muslim elected to Congress. My information is that, at least on the Democratic side, there was a decision to let him assume the seat as a courtesy to his late grandmother Rep. Julia Carson, who died last year. But he’s got opposition in the primary contest in May, and there will be a vigorous general election fight as well. All of which could make Andre Carson the first sitting Muslim member of Congress to be defeated for reelection.