Perry’s loyal backers are running into resistance from Republican donors. One Perry fundraiser, who asked not to be named, said he received 15 RSVPs for a recent event from potential donors saying they might attend. But after a gaffe-marred Perry debate performance, none showed up.

“The debates have taken a toll,” the fundraiser said. “The national numbers have taken a toll. People see the campaign on a negative trajectory.”…

“It’s the iron rule of politics: Money follows popularity,” says Austin lobbyist Bill Miller, a Perry donor. “It goes up if you’re popular and goes down if you’re not.”

Another Perry fundraiser said he expects the Texas governor to raise between $3 million and $5 million in the final three months of 2012 — less than one-third of what he generated in the first six weeks of his candidacy.