Sen. Marco Rubio (R-Fla.) is endorsing Iowa Senate candidate Joni Ernst (R), giving her race a boost in the first-in-the-nation caucus state.
"I'm proud to announce that Joni Ernst from Iowa is my Reclaim America PAC's newest endorsement of 2014," Rubio writes in an email to supporters, calling Ernst "the type of tough, no-nonsense conservative that we need in Washington."
Ernst has drawn endorsements from across the party. Former Massachusetts Gov. Mitt Romney (R) and former Alaska Gov. Sarah Palin (R) are both backing her, and she has quiet support from Iowa Gov. Terry Branstad (R) as well.
Rubio has been eyeing a presidential bid for some time, and if his candidate wins he could have an important ally in the early-voting state.