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.) in an interview broadcast Sunday expressed some concerns regarding President Trump, saying he worries about the president's understanding of some issues and his contradictory statements.

McCain was asked on NBC's "Meet The Press" how much confidence he has on the current commander in chief.

"Well, I worry. I worry about the president's understanding of some of these issues and his contradictory articulations," McCain said.