Right to Rise, the super-PAC supporting Jeb Bush’s presidential campaign, reported on Sunday raising $15.1 million in the second half of 2015.
Almost two-thirds of the committee's second-half funds came from a single contribution. A company owned by Hank Greenberg -- former head of American Insurance Group -- gave $10 million in October.
In the fourth quarter of the year alone, the committee spent over $54 million to promote Bush, who has a RealClearPolitics polling average of 4.8 percent nationally.
Right to Rise has also targeted Sen. Marco RubioMarco RubioWhat Trump's Cabinet picks reveal House passes water bill with Flint aid, drought relief What the 2016 election can tell us about 2018 midterms MORE (R-Fla.), Bush's GOP rival, who has risen to the top of the so-called establishment candidate lane, yet still trails behind Sen. Ted CruzTed CruzCruz, DeSantis to introduce constitutional amendment on term limits Fiorina to meet with Trump on Monday Trump picks Goldman Sachs chief for top economic adviser: report MORE (R-Texas) and front-runner Donald TrumpDonald TrumpMichigan Supreme Court rejects Stein's recount effort Secret CIA assesment: Russia was attempting to assist Trump Trump closes four companies tied to Saudi Arabia MORE.
And despite the committee’s high spending and diminished fundraising, it entered 2016 with $58.6 million on hand.