Matea Gold for WaPo:

However, Trump does not appear to be harvesting as much cash from those joint fundraising efforts as Clinton does. His campaign said that that it raised $64 million with the RNC through online donations and direct mail in July, ostensibly mostly small contributions that would be directed to his committee, rather than the party. But Trump’s campaign reported just $36 million in receipts last month. That included $14.5 million transferred from the joint fundraising committees and a $2 million donation from Trump himself, who has now given a total of $52 million to finance his White House bid.

It is unclear why more money was not transferred from the joint fundraising committees, which are not scheduled to file their next finance reports until Oct. 15. The Trump campaign did not respond to requests for clarification.