Rubio announces he is running for reelection

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Sen. Marco Rubio (R-Florida) will announce he is running for reelection, according to multiple reports Wednesday.

Rubio had insisted since he began his presidential bid that he would retire from the Senate after one term. However, in recent weeks Rubio has been rumored to be reconsidering and has been urged by top Senate Republicans and presumptive Republican nominee Donald Trump to run for a seat that could be crucial in determining the majority in the Senate.

A Quinnipiac poll released Wednesday shows Rubio would have a big edge over both Democratic candidates.

Rubio has 47 percent support, to 40 percent support for Rep. Patrick Murphy (D-Florida) if the two face off head-to-head. In a match-up between Rubio and Rep. Alan Grayson (D-Florida), Rubio leads 48 to 40 percent.

The five GOP candidates trail Murphy and Grayson in head-to-head polls.

The new Quinnipiac survey also provided some good news to Senate Republicans who are facing tough reelection bids in other states. In Pennsylvania, Sen. Pat Toomey (R) has 49 percent, with Democratic challenger Katie McGinty at 49 percent. In Ohio, Sen. Rob Portman (R) is tied with former Gov. Ted Strickland (D) at 42 percent each.

These three Senate seats have been a source of concern for the GOP with Donald Trump at the top of the ticket. Many Republicans worry Trump will harm down-ballot Republicans with his tone and lack of fundraising efforts.

The poll surveyed 975 voters in Florida with a margin of error of 3.1 percentage points, 971 voters in Ohio with a margin of error of 3.1 percentage points, and 950 voters in Pennsylvania with a margin of error of 3.3 percentage points.