Trump and his staff have told some individuals — including potential donors — that as soon as the billionaire businessman secures the nomination, he will pivot and begin fundraising for a general election fight, the source said.

In the event that he wins, Trump will have to quickly scale up his campaign — particularly if he’s competing nationwide against Hillary Clinton’s behemoth political organization. In private conversations, Trump and his aides have acknowledged that the Republican Party will need to be well-funded for the general election, and that Trump will work with the party to ensure that’s the case.

Their message is “basically we’re going to be a traditional party candidate,” as far as fundraising is concerned, the source said.

Trump has prided himself on running an efficient primary campaign, funded largely from his personal wealth.