President Donald Trump on Sunday escalated his call for the Washington Commanders to change their name back to the “Redskins,” threatening to restrict the NFL team’s stadium deal if they don’t, though it’s unclear how he would be able to.

In a fiery twist to the Washington Commanders’ search for a new stadium, U.S. President Donald Trump has inserted himself into the debate—threatening to block the team’s proposed $4 billion stadium deal unless it changes its name back to the "Redskins.