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Hillary Clinton's super PAC, Priorities USA Action, collected more than $9.5 million in January

Donations include $3.5 million from James Simons, a hedge fund manager, and $1 million from trial attorney Steve Mostyn

CNN  — 

Hillary Clinton’s super PAC collected more than $9.5 million in January, more than half of which came from five wealthy donors.

Priorities USA Action earned a $3.5 million check from James Simons, a New York City hedge fund manager and philanthropist on Jan. 11, the group told the Federal Election Commission in a filing on Saturday.

Jay and Mary Pritzker, two members of a prominent and wealthy Chicago family, also gave a total of $2 million to the group just a few days before Clinton essentially tied Bernie Sanders in Iowa. Slim-Fast founder Daniel Abraham gave $1 million. Texas trial lawyer and prominent Democratic donor Steve Mostyn added $1 million.

Clinton herself added to that financial advantage over Sanders – who does not have an authorized super PAC – with a $14.9 million haul for her campaign. She had nearly $33 million on hand as of Jan. 31. Priorities USA Action had nearly $45 million in cash on hand at the end of January.

Sanders’ campaign outraised Clinton’s campaign in January though, raising $21.3 million. His campaign now claims more than 4 million individual donors and does not have an official super PAC.

Big checks for Rubio, Cruz

On the Republican side, Ted Cruz had substantially more money on hand at the end of January than the other GOP candidates still in the race. The day before Cruz won Iowa, he had $13.6 million, while candidates like John Kasich only had under $1.5 million.

Some Republican super PACs reported additional seven-digit donations on Saturday: Oracle executive Larry Ellison gave $1 million in January to Marco Rubio’s group, and a Texas LLC called Trinity Equity, with some ties to Cruz megadonor and close friend Toby Neugebauer, contributed $1 million to Cruz super PAC, Stand for Truth.

Former Florida Gov. Jeb Bush had a less-than-stellar fundraising month. Having come up short in Iowa and New Hampshire, his super PAC raised $320,000 in all of January. That’s a significant drop from a year ago when the outside group was seen as a fundraising juggernaut.

Donald Trump, winner of the South Carolina Republican primary on Saturday, reported loaning his campaign $5 million – which will likely play into his narrative about self-funding his campaign.