Hillary Clinton Hillary Diane Rodham ClintonDemocratic groups using Bloomberg money to launch M in Spanish language ads in Florida The Hill's Campaign Report: Presidential polls tighten weeks out from Election Day More than 50 Latino faith leaders endorse Biden MORE donors believe Sen. Bernie Sanders Bernie SandersOutrage erupts over Breonna Taylor grand jury ruling Dimon: Wealth tax 'almost impossible to do' Grand jury charges no officers in Breonna Taylor death MORE (I-Vt.) may soon eclipse the Democratic presidential front-runner’s fundraising, according to a new report.

Contributors are worried Sanders may outraise Clinton’s campaign in the fourth quarter of 2015, Politico reported Tuesday

ADVERTISEMENT

“People are feeling very complacent — and more reluctant to contribute — because they don’t take Bernie Sanders seriously,” Alan Patricof, a top Clinton contributor, told the publication.

“They look at the other side and think, ‘How could anyone possibly back any one of them?’ ” he added of Republicans. "The attitude of sensible people is that she’s the only one who makes sense.”

Politico added that Clinton’s significant lead over Sanders in national polls makes contributors wary of supporting her until she becomes the Democratic presidential nominee.

Clinton currently holds a nearly 27-point lead in the Democratic presidential race, according to a RealClearPolitics polling average.

“Let Bernie outraise her — he’s not going to be the nominee,” one top donor told the publication.

“The idea that Donald Trump or Ted Cruz could actually be the president is going to be the greatest fundraising mechanism in the history of the world, and it’s just too early for that,” the donor added.

Clinton remains on pace for $100 million in fundraising in the Democratic primary by year’s end, Politico said Tuesday. The former secretary of State already brought in $77 million through the end of the third fundraising quarter.

However, Sanders is gaining steam, breaking the record for the most individual campaign contributions last weekend.

His staff announced late Sunday that it now boasts the record for the largest number for individual donations toward an Oval Office bid in a presidential off-year.

“His campaign has now received more contributions than any other candidate at this point in any White House bid — more than 2.3 million contributions,” Sanders’s campaign said in a statement.

President Obama set the previous high mark by amassing 2.2 million individual donations in 2011.

Sanders’s campaign said its unprecedented haul stems from enthusiasm after his performance in Saturday's Democratic presidential debate.

“The Sanders campaign crossed that mark during the debate as grassroots supporters flooded the BernieSanders.com website,” its statement said. "The average contribution for the night to the Sanders campaign was below $25.”

Sanders raised over $26 million in the third quarter, just behind Clinton's $29 million total. He has not yet outraised Clinton during any financial quarter this election cycle.