Donald Trump is the presumptive presidential nominee and now he has a big obstacle to overcome: Hillary Clinton’s money machine.

Trump faces a problem: he has spent the last year railing against his parties powerful donors.

Many fundraisers are now playing the wait-and-see game as Trump is looking for money. They are mulling over whether they should give him any. Deep-pocket financiers who have together poured hundreds of millions of dollars into efforts to elect past GOP nominees say they are monitoring his tone and waiting for his phone call as reported by CNN.

Fred Malek, the finance chair of the Republican Governors Association and a major GOP fundraisers said donors are choosing to sit on the sidelines waiting to see if Trump is going to change his tone.

Malek said:

He seems to be taking the position that — ‘Hey, he’s the nominee so you’ve got to get behind him.’ Well, it doesn’t work that way. He is going to have to figure out that he’s got to be more inclusive and bring people together, and I think he will.

The Trump campaign and the Republican National Committee are hashing out an agreement which will allow them to raise money jointly — which also allows them to collect larger checks from donors. While that is standard procedure for the party and its presidential nominee, it has drawn attention to this cycle because Trump has previously stated he is self-funding his campaign.

Wary of Trump being labeled a flip-flopper on the fundraising issue, the campaign is branding finance events as “victory” events that benefit the party even though they are fundraising events for Trump’s campaign.

Trump even has a finance team and it includes Anthony Scaramucci a veteran Republican fundraiser and Peter Thiel a Silicon Valley venture capitalist.