Republican donors who are supporting Donald Trump are growing increasingly uneasy — not just about the constant controversy surrounding the presumptive GOP nominee but also the perceived total lack of infrastructure related to his nascent fundraising operation.

The list of problems, according to donors and party officials, is both long and not simple to recover over the course of a short period. Some notable top donors, including financier Paul Singer and Joe and Marlene Ricketts, are now sitting out the campaign.
Interviews with more than a dozen donors, party, campaign and congressional officials make clear the concerns have expanded beyond bruised feelings over personal slights — and even beyond the top donors who simply won’t give to the New York billionaire. “This isn’t a triage-type of situation,” said one GOP donor who backed Jeb Bush during the primary, but is planning to donate to Trump. “This is a massive, full body surgery type deal and we just don’t have much time for that.”
The anxiety is unfolding as a faction of Republicans is planning an emergency plot to stop Trump at next month’s GOP convention. Trump himself doesn’t seem concerned, insisting he can fund his own campaign if the GOP doesn’t get in line.