A super PAC supporting celebrity billionaire Donald Trump has made its first television buy, spending $1 million on a spot encouraging the Republican Party to unify behind him, even as establishment figures in the GOP make last-ditch attempts to derail his march to the GOP nomination.

Great America PAC, which was formed and officially registered with the Federal Election Commission on Feb. 1, spent $25,000 on radio ads in Iowa in January, but this week's buy marks the group's most significant campaign expenditure to date.

The 30-second spot will air ahead of April 26 primaries in Delaware, Pennsylvania, Rhode Island and Connecticut. It uses footage of Trump's public remarks, in which he brags his campaign has inspired and attracted new and disaffected voters.

"We have expanded the Republican Party," he says in the ad. "They came from the Democratic Party, and they were independents, and they all switched.

"We're going to be more inclusive, we're going to be more unified, we're going to be a much bigger party, and I think we're going to win in November," he says as the ad continues.



One of Trump's favorite selling points on the campaign trail is that he's self-funding his presidential run, and that his refusal of outside money spent on his behalf means he's not beholden to special interests, unlike his competitors.

But the activities of an independent super PAC – which, sanctioned or no, is prohibited from coordinating activities with a candidate's campaign – threaten to undermine Trump's declaration of independence.

Last month, Trump's camp hinted that it may abandon its anti-super PAC posture as the campaign moves into the general election, which is expected to cost more than $1 billion on each side.

