And while this team has dominated better-organized Republican rivals, even the billionaire businessman’s allies fear that Trump’s ongoing neglect of his campaign’s infrastructure will haunt him in the general election — particularly if he runs up against an opponent as meticulously organized and massively funded as Hillary Clinton.

“If it doesn’t explode in the primary, then it will in the general,” said a person intimately involved in Trump’s political operation. “If he wins the general, they’re screwing it up down-ballot.”

Because of Trump’s frugality, his disdain for political consultants and his early success winning three of the first four states by double-digit margins, his allies — who spoke on the condition of anonymity to voice their dissent — believe the campaign is unlikely to reverse itself soon. “This sh– is working, so they are not incentivized to change,” said the person involved with the billionaire’s political operation.

In the general election, the eventual nominee will gain access to data, get-out-the-vote and advertising reinforcements from the Republican National Committee. But in Trump’s case, the RNC would be attempting to integrate its operations with a campaign with which it has had a contentious relationship and that appears to lack the top-flight technical talent necessary to take full advantage of cutting-edge voter targeting techniques.