Donald Trump has personally contributed $3.8 million. (File Photo)
Stung by revelations last month that he trailed Hillary Clinton's fundraising efforts by more than $40 million, Donald Trump's campaign announced on Wednesday it had raised more than $50 million in June.
The tycoon's team said more than $26 million had been raised from more than 400,000 supporters through a newly set up online and small contribution network.
Twenty-two fundraising events raked in another $25 million since the last week of May and Trump had personally contributed $3.8 million, it said.
"We just started our fundraising efforts in the last week of May and we are extremely pleased with the broad-based support," said Steven Mnuchin, the campaign's finance chairman.
The fundraising push comes after filings to the Federal Election Commission showed that Clinton had $42 million cash on hand compared to $1.3 million for Trump, sounding alarm about his readiness for a gruelling election battle.
Trump, who denounced Clinton's war chest last month as "blood money", has repeatedly knocked political rivals for being beholden to mega-donors.
But after The New York Times reported that around 20 percent of his campaign expenses were being ploughed back into his businesses, Trump wrote off more than $50 million in personal donations to his campaign as a gift.