Trump and his Republican allies also have made baseless claims about widespread voting by non-citizens, which is illegal and rarely occurs.

The president sought to add a requirement for voters to show a passport or similar document proving citizenship when registering to vote through a federal form.

Federal judge rules proof-of-citizenship directive an unconstitutional violation of separation of powers

U.S. District Judge Colleen Kollar-Kotelly in Washington, D.C., was the first to reach a final ruling against the Trump executive order.

Trump and his Republican allies also have made baseless claims about widespread voting by non-citizens, which is illegal and rarely occurs.

A federal judge in Washington permanently blocked President Donald Trump's executive order requiring proof of citizenship for those who cast mail-in ballots.