A well-known Republican lobbyist and commentator is hosting a fundraiser Tuesday to help former Trump aide Rick Gates fight federal charges brought against him by special counsel Robert Mueller.

According to a press release, Jack Burkman will host the fundraiser at 7:30 p.m. Eastern time Tuesday at a Holiday Inn in Arlington, Va.

The money raised will benefit “Defending American Rights Legal Fund,” and a statement on the event said Burkman expects to raise “substantial capital.”

“The fund will also assist other accused Americans defend themselves against accusations and charges that the Trump campaign played a deliberate role in working with outside forces to secure the election victory of President Donald Trump,” the statement said.

Gates was indicted and charged with Paul Manafort, who joined President Trump’s campaign team in March 2016 and served as campaign manager from June to August 2016. Both were charged by Mueller as part of his broad investigation into Russian meddling in the 2016 presidential election and possible collusion with the Trump campaign, and have pleaded not guilty to all charges.

Gates is currently under house arrest but could be allowed to attend Tuesday’s event. However, he will still have to abide by a federal judge’s gag order on the case.

Burkman is president of the lobbying firm Burkman Associates and has not been without controversy in recent years. In 2014, he allegedly supported legislation that would ban openly gay players from playing in the NFL.

In March, he said he had evidence that linked the murder of Democratic National Committee staffer Seth Rich to Russians.