Oct. 31 (UPI) -- A federal judge in Washington permanently blocked President Donald Trump's executive order requiring proof of citizenship for those who cast mail-in ballots.

The president lacks the authority to change federal election procedures because the Constitution places that authority with Congress and the respective states, U.S. District Court for the District of Columbia Judge Colleen Kollar-Kotelly ruled on Friday.

"The president directed the Election Assistance Commission to 'take appropriate action' to alter the national mail voter registration form to require documentary proof of United States citizenship," Kollar-Kotelly said in her 81-page ruling.

Because Trump does not have the authority to order the EAC to alter federal election procedures, Kollar-Kotelly permanently enjoined the EAC and others from enforcing the president's directive.

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