Democratic presidential candidate Bernie Sanders Bernie SandersMcConnell accuses Democrats of sowing division by 'downplaying progress' on election security The Hill's Campaign Report: Arizona shifts towards Biden | Biden prepares for drive-in town hall | New Biden ad targets Latino voters Why Democrats must confront extreme left wing incitement to violence MORE's campaign on Friday poked at rival Hillary Clinton Hillary Diane Rodham ClintonHillicon Valley: FBI chief says Russia is trying to interfere in election to undermine Biden | Treasury Dept. sanctions Iranian government-backed hackers The Hill's Campaign Report: Arizona shifts towards Biden | Biden prepares for drive-in town hall | New Biden ad targets Latino voters FBI chief says Russia is trying to interfere in election to undermine Biden MORE’s moneyed super-PACs, bragging in a statement that he doesn't raise any money for super-PACs.

“Bernie doesn’t want billionaires’ money [and] he doesn’t have a super PAC,” spokesman Michael Briggs said in the statement.

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“He believes you can’t fix a rigged economy by taking part in the corrupt campaign finance system in which politicians take unlimited sums of money from Wall Street and other powerful special interests and then pretend it doesn’t influence them,” he added.

Sanders’ jab at Clinton’s well-funded campaign comes just three days before Iowa’s first-in-the-nation caucuses Monday.

Clinton leads Sanders by just 2.5 points in the state, according to a RealClearPolitics average.

Priorities USA Action, a pro-Clinton super-PAC, announced Friday that it had grown its war chest to $45 million. Of that haul, $25 million came during the last half of 2015. Another $10 million arrived in January.

“We have raised significantly more resources than at this point in 2012, built a team of our Party’s strongest leaders and activists, and are developing cutting edge strategies to reach Democratic and undecided votes in every battleground state,” co-chairman Guy Cecil wrote in a memo released Friday.

“Hillary Clinton has spent her entire life fighting for us. Now it’s time to fight for her. With your help, Priorities is ready for what’s ahead.”

The pro-Clinton group’s total is far ahead of its 2012 take, when it supported President Obama’s re-election bid.

Sanders has frequently railed against campaign finance laws, vowing he would curb the influence of wealthy donors as president. He has largely relied on small donations to fund his White House bid.