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 said Sunday that he doesn't need to match likely general election rival Hillary Clinton Hillary Diane Rodham ClintonJeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Momentum growing among Republicans for Supreme Court vote before Election Day Warning signs flash for Lindsey Graham in South Carolina MORE in donations because he gets so much free media.

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"I don't even want that kind of money, and I don't think I need that kind of money, frankly," Trump said in an interview aired on NBC's "Meet the Press."

"Look, what we're doing right now, it's like a commercial, except it's tougher than a normal commercial," he said to NBC reporter Hallie Jackson.

Trump, the presumptive GOP presidential nominee, has relied more on free media exposure than traditional advertising.

Research shows he earned nearly $2 billion worth of free media through February.

But he contends that he has raised "a lot of money" for the Republican Party.

"We're doing very well," he said, adding he raised "millions of dollars" just last week.

"[Clinton] is selling herself to Wall Street, and the Wall Street fat cats are putting up a lot of money for her."

But the self-described "self-funded" candidate's campaign sent an urgent fundraising email to supporters Saturday asking for at least $100,000 in donations by the end of the day to "help get our ads on the air."

That requested followed a multimillion-dollar ad blitz launched by Clinton, the presumptive Democratic nominee, last week.