Former Speaker of the House John BoehnerJohn BoehnerAn anti-government ideologue like Mulvaney shouldn't run OMB Boehner endorses DeVos for Education secretary Trump, House GOP could clash over 'Buy America' MORE endorsed Ohio Gov. John Kasich on Saturday, Cincinnati.com reports.
"He's my friend," Boehner reportedly said.
Ohio holds its winner-take-all primary on Tuesday. Kasich has said that he will drop out if he doesn't win his home state, and is still polling behind front-runner Donald TrumpDonald TrumpBoeing CEO touts 'progress' with Trump on Air Force One costs Poll: ObamaCare reaches new popularity Twitter user @Ivanka responds to Trump after misdirected tweet MORE, although the margin has narrowed. The latest Real Clear Politics average puts Trump ahead by just 2.5 percentage points.