Federal authorities are investigating fake letters sent to Republicans across the key swing state of Florida, apparently aiming to dissuade them from voting.

The letters, which appear official at first glance, pretend to be from the office of the Florida supervisor of elections. They state that the recipient’s citizenship is in question, and must be cleared up in person before Election Day.

The letter also states, "A non-registered voter who casts a vote in the state of Florida may be subject to arrest, imprisonment and/or other criminal sanctions."

It’s believed that the intention is to give the recipient a false impression that they are not eligible to vote or to create confusion among voters. The phony letters were postmarked in Seattle and did not include a return address.

Bill Bishop, president of the Jacksonville, Fla., city council was on Fox and Friends to discuss the letters, one of which he received.

If you get one of these letters and you're not registered or not a citizen, you shouldn't be voting in the first place. But the fact that they're going to people who vote on a regular basis.... it just sounds like political dirty tricks to cause confusion amongst the voters," he said."

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