Democratic presidential candidate Bernie Sanders arrives for a breakfast meeting with civil rights leader Al Sharpton at Sylvia's Restaurant in Harlem, New York, on Wednesday. (AP Photo/Seth Wenig)

NEW YORK -- Winning the New Hampshire primary proved to be a pretty lucrative proposition for Bernie Sanders.

Within 24 hours of the polls closing, aides said Sanders had raised more than $6 million and was pushing supporters to chip in another $1 million by midnight -- having blown by the earlier goal.

“I’ll be honest -- right now, the math looks difficult to raise another $1 million today,” campaign manager Jeff Weaver said in an email blasted to supporters. “But I think it’s important for us to try, and not just because there are 14 primaries and caucuses over the next three months.”

Sanders’s ability to raise money online has proven a major advantage in his race for the Democratic nomination against Hillary Clinton. And big moments in the campaign typically produce big bursts of donations.

Prior to the New Hampshire haul, Sanders’s largest 24-hour take came in the wake of his near-tie with Clinton in the Iowa caucuses. During that stretch, he raised $3 million, according to aides.

The latest wave was propelled in part by a direct plea from Sanders during his nationally televised victory speech on Tuesday night.

"Please help us raise the funds we need, whether it’s 10 bucks, 20 bucks or 50 bucks,” he said during his speech in Concord, N.H.

Sanders spent Wednesday in New York, courting supporters and making a string of media appearances, including “The View” and “The Late Show with Stephen Colbert.”