Rep. Paul RyanPaul RyanThe Hill Interview: Budget Chair Black sticks around for now Gun proposal picks up GOP support GOP lawmaker Tim Murphy to retire at end of term MORE (R-Wis.) will return to Iowa for the first time since the 2012 campaign, a move sure to stoke speculation about whether he'll run for president in 2016.

Ryan will headline Iowa Gov. Terry Branstad's (R) annual birthday fundraiser, Branstad tells the National Review.

"He's a key player in the House, and I like him a lot," Branstad said. "I enjoyed campaigning with him last year. He's a good guy."

Last year's headliner was Sen. Marco RubioMarco Antonio RubioOvernight Defense: Tillerson, Trump deny report of rift | Tillerson says he never considered resigning | Trump expresses 'total confidence' in secretary | Rubio asks Army to kick out West Point grad Rubio asks Army to kick out West Point grad with pro-communist posts GOP establishment doubts Bannon’s primary powers MORE (R-Fla.).