(Minnesota Public Radio) U.S. Rep. Keith Ellison, a Democrat, is demanding that Republican U.S. Rep. Michele Bachmann apologize for suggesting he has connections to the Muslim Brotherhood, an Islamist political movement.

Bachmann made those claims Thursday after facing stiff criticism that she and a handful of other Republican members of Congress crossed the line by suggesting that the Muslim Brotherhood is infiltrating the federal government.

Bachmann and four other congressional Republicans sent a letter to federal officials last month asking for an investigation of the Muslim Brotherhood’s ties to the U.S. government.

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