He added: “In the end, I think, probably, opening up Cuba is probably a good idea."
President Obama announced Wednesday that the United States would reopen its embassy in Havana and ease restrictions on travel and commerce with Cuba.
Other potential White House hopefuls have spoken out against Obama's decision. Sen. Marco Rubio (R-Fla.), Sen. Ted Cruz (R-Tex.) and Louisiana Gov. Bobby Jindal (R) took issue with it. So did former Florida governor Jeb Bush (R).
New Jersey Gov. Chris Christie (R) has not weighed in.
On the Democratic side, presumed frontrunner Hillary Clinton said she supports Obama's decision.