A Wisconsin taxpayers group asked the US Supreme Court to block President Joe Biden’s student-loan relief plan from taking effect, accusing him of usurping the power of Congress and costing taxpayers potentially more than $1 trillion.

The emergency filing from the Brown County Taxpayers Association seeks to keep the plan on hold while the group’s legal challenge goes forward. The group says the administration could start canceling loans as soon as Sunday without Supreme Court intervention.

Biden unveiled his plan in August to forgive as much as $20,000 in federal loans for certain borrowers making less than $125,000 per year or $250,000 for spouses. The plan made good on one of Biden’s campaign promises and could bolster Democrats in next month’s midterm elections by encouraging young voters to cast ballots.

The taxpayers group filed its request with Justice Amy Coney Barrett, who is assigned to handle emergency matters from Wisconsin. Barrett could act on her own or refer the matter to the full nine-member court.

This article was provided by Bloomberg News.