Sen. John McCain John Sidney McCainThe electoral reality that the media ignores Kelly's lead widens to 10 points in Arizona Senate race: poll COVID response shows a way forward on private gun sale checks MORE (R-Ariz.) called the leader of North Korea a “crazy fat kid" on Wednesday.

“China is the one, the only one, that can control Kim Jong-un, this crazy fat kid that’s running North Korea,” McCain told MSNBC’s “For the Record with Greta.”

“They’re the ones. They could stop North Korea’s economy in a week.”

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McCain has previously called for a more aggressive stance on North Korea in United Stats policy. In January 2016, the senator argued America should deploy a missile system in the Korean Peninsula in response to North Korean claims it conducted a nuclear test.

McCain in the Wednesday interview compared Kim Jong-un to the Soviet Union leader Joseph Stalin.

“He’s not rational, Greta,” he added. “We’re not dealing even with someone like Joseph Stalin, who had a certain rationality to his barbarity.”

Secretary of State Rex Tillerson, in his first trip to Asia last week, spoke with his Chinese counterpart about North Korea’s nuclear program and said the U.S. will work with China to counter any aggression.

"We share a common view and a sense that tensions on the peninsula are quite high right now and that things have reached a rather dangerous level, and we've committed ourselves to doing everything we can to prevent any type of conflict from breaking out," Tillerson reportedly said.