How could Trump’s order to curb mail ballots be implemented before the midterms?

How could Trump’s order to curb mail ballots be implemented before the midterms?  CNN

The U.S. Postal Service has unveiled new requirements for mail ballots less than two weeks before some states begin sending them, but the regulation will take effect only if the Supreme Court allows President Donald Trump's order restricting voting by mail to go forward.

US Postal Service issues new rule for mail ballots, but its impact on the midterms is uncertain  Toronto Star

The U.S. Postal Service is issuing a new regulation limiting mail ballots in November's election, but it won't go into effect unless the U.S. Supreme Court allows it

The U.S. Postal Service is issuing a new regulation limiting mail ballots in November's election, but it won't go into effect unless the U.S. Supreme Court allows it

US Postal Service issues new rule for mail ballots, but its impact on the midterms is uncertain  AP News

Voting rights groups warned of “widespread confusion” and “undermining voter confidence and disrupting the administration of elections.”

The changes would not go into effect until the court lifts its injunction.