As the GOP national convention nears, Donald Trump continues to have problems getting some Republicans to unite and back him in the race. He has labeled them “an insurgent group” and has threatened to stop fundraising if they don’t rally around him.

“Now you have a couple of guys that were badly defeated and they’re trying to organize maybe like a little bit of a delegate revolt,” he said. “I thought they already tried that.”

With the convention only a month away, the “Anybody but Trump” movement has stepped up its efforts to stop Trump from becoming the party’s presidential nominee by trying to change party rules.

“This literally is an ‘Anybody but Trump’ movement,” Kendal Unruh, a Republican delegate from Colorado said. “Nobody has any idea who is going to step in and be the nominee, but we’re not worried about that. We’re just doing that job to make sure that he’s not the face of our party.”

Trump’s popularity is at an all-time low following recent weeks of outrageous remarks about the ethnicity of the federal judge presiding over his Trump University lawsuits, calls to prohibit Muslims from coming to America and his changing positions on gun laws.

“It would be helpful if the Republicans could help us a little bit,” Trump said Saturday, obviously concerned over opposition from Republicans who have been troubled by his incendiary remarks.

He said that if the GOP party can’t unite behind him, he’ll stop fundraising and go back to self-funding.

“I’d love to do it,” Trump said. “You know, life is like a two-way street.”