"I enjoyed some of you with your eyes on higher office sizing up the drapes -- and each other," Obama told the National Governors Association on Monday.
While New Jersey Gov. Chris Christie (R) was at home for his daughter's birthday, possible 2016 contenders such as Texas Gov. Rick Perry (R), Louisiana Gov. Bobby Jindal (R) and Maryland Gov. Martin O’Malley (D) were in attendance.
Noting that enrollment in Affordable Care Act exchanges was "going gangbusters" in states like California and Kentucky, Obama urged many Republican governors to expand Medicaid under the law.
The President also hinted at his possible successors during a dinner on Sunday night.
"Tonight we want to make sure all of you make yourselves at home," Obama said. "To which some of you are thinking, 'That's been the plan all along.' "