Donald Trump Donald John TrumpUS reimposes UN sanctions on Iran amid increasing tensions Jeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Trump supporters chant 'Fill that seat' at North Carolina rally MORE is sending out his first small-dollar fundraising email to supporters after a disastrous May fundraising report showed his campaign account drying up.

The email pitch, sent Tuesday morning, promises that the presumptive GOP presidential nominee will personally match up to $2 million in donations between Tuesday and Thursday as he hopes to jump-start his fledgling fundraising organization and make up some of the gap between himself and likely Democratic presidential nominee

Trump sends first fundraising email ever. It is June 21st. pic.twitter.com/KV1owIABaz — Jessica Taylor (@JessicaTaylor) June 21, 2016

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Trump's campaign reported Monday just $1.3 million in the bank as of the start of June after raising just $3.1 million in May. By comparison, Clinton has $42.5 million in the bank.

Trump's total puts him behind all top 50 House candidates in cash on hand, according to nonpartisan campaign finance website OpenSecrets

The revelations of Trump's poor fundraising haul came after a difficult day for the Trump campaign, which on Monday fired its manager, Corey Lewandowski.

"This is my first fundraising email I have sent on behalf of my campaign," he writes. "That's right. The FIRST ONE."