Donald Trump has put the GOP’s three largest fundraising entities on notice, telling the RNC, NRCC and NRSC that they must stop using his name and likeness on fundraising emails and merchandise, according to Politico.

The former president is reportedly furious that his brand has been used to support GOP House members that voted to impeach him.

A Trump advisor told Politico, “President Trump remains committed to the Republican Party and electing America First conservatives, but that doesn’t give anyone – friend or foe – permission to use his likeness without explicit approval.”

Trump enjoys broad support in the GOP and the party needs his cooperation if it wants to return to power in Washington. Politico explains:

…privately GOP campaign types say it’s impossible not to use Trump’s name, as his policies are so popular with the base. If Trump really wants to help flip Congress, they argue he should be more generous. His team, however, sees this differently.”

The Hill, which confirmed Politico’s reporting, says Trump’s decision to hamstring GOP fundraising efforts underscores his tight grip on the party:

The letter from Trump’s attorneys appears to be part of the former president’s efforts to solidify his standing as a top kingmaker in the GOP. Trump has already forecasted that he will be heavily involved in the 2022 midterms while he mulls making a third presidential bid in 2024, and his endorsement is expected to be highly sought after by most Republicans.