FILE - In this May 18, 2016 file photo, Libertarian presidential candidate, former New Mexico Gov. Gary Johnson speaks with legislators at the Utah State Capitol in Salt Lake City. The day after political heavyweight Mitt Romney name-dropped him on Twitter, the former New Mexico governor seemed to reveal a hole in his foreign-affairs knowledge when he was befuddled by an otherwise routine question about the Syrian city of Aleppo. Rick Bowmer AP
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The plugs from Schwarzenegger and Romney may prove timely as Johnson deals with some political fallout from stumbling on a question about the war-torn Syrian city of Aleppo during an interview Thursday on MSNBC’s "Morning Joe."

"I take complete responsibility. I'm running for president of the United States," Johnson told CNN’s Wolf Blitzer Friday. "Look, I should have known what he was talking about."

William Douglas: 202-383-6026, @williamgdouglas