Sen. Marco Rubio (R-Fla.) hinted Wednesday that he would not try to run for reelection if he decides to run for president in 2016 and it does not work out.

After he noted that Florida law would not allow him to appear on the ballot twice, Rubio was asked by conservative radio host Hugh Hewitt whether he'd consider running for another term if he runs for president and does not win. Under such a scenario, depending on when he dropped out of the presidential sweepstakes, he might be able to run for another term in the upper chamber.

"I haven't even thought that far ahead," Rubio responded with a chuckle. "You know, I think by and large when you choose to do something as big as that, you've really go to be focused on that and not have an exit strategy."

Viewed widely as a potential presidential candidate, Rubio told Hewitt he will decide whether to make a White House bid by "around this time next year," reiterating the timeline he laid out Tuesday at a Reuters Health Summit in Washington.

Rubio was first elected to the Senate in 2010.