The Biden administration on Monday rebuked a group of six states hoping to undo its plans to forgive student loan debt for millions of Americans.

It’s the latest salvo in the ongoing legal bickering between conservative groups trying to derail the debt relief plan and the administration’s hope of erasing millions of borrowers’ debt – in keeping with a campaign promise – before the year’s end. 

‘Debt and no degree’:Biden cancels as much as $20K in student loan debt

The federal government said the states had failed to prove they would be injured by the administrations’ debt relief initiative. It also said any limitation the court handed down should be restricted to the states bringing the challenge, where about 2.8 million people are eligible for debt forgiveness.

The six conservative states – Arkansas, Iowa, Kansas, Missouri, Nebraska and South Carolina – have argued the president acted beyond his authority and allege they could be hurt financially by the mass forgiveness of student loan debt.

“Plaintiffs will suffer no irreparable injury from the provision of much-needed relief to millions of Americans, but the public interest would be greatly harmed by its denial,” the Biden administration said in its court filing. “If the Court disagrees, any injunction should be narrowly tailored to the plaintiff States.”

A federal judge in Missouri had dismissed the states’ case over a lack of standing, but the group then turned to the United States Court of Appeals for the Eighth Circuit. That court granted them a stay, and it’s unclear how long it will last. The White House filed a response to that stay Monday.

Since President Joe Biden announced his plan, conservatives have criticized it for being an expensive overreach of the executive branch and threatened legal action.