A "Make America Great Again" hat. A tea party T-shirt. A MoveOn.org button. Wear any one of those items to vote in Minnesota, and a poll worker will probably ask you to remove it or cover it up. Like a number of states, Minnesota bars voters from wearing political items to the polls to reduce the potential for confrontations or voter intimidation. But that could change. The Supreme Court on Feb. 28 will consider a challenge to the state's law, in a case that could affect other states, too.
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