Florida Sen. Marco Rubio’s leadership political action committee, Reclaim America PAC, reported raising $563,000 in its first four months of existence. The PAC ended December with more than $275,000 in cash on hand and no debt.

Rubio, a conservative star who was a fundraising powerhouse during his upstart Senate bid in 2010, is considered a top-tier contender for the vice presidential spot on this year’s GOP ticket. His role in Tuesday’s primary in Florida solidified his national stature.

Donations to the PAC came from more than 25 states.