McCain: Putin is 'more important threat, more so than ISIS'

John McCain called Russian President Putin America's greatest threat. During an interview with the Australian Broadcasting Corp., McCain said Putin is the "premier and most important threat, more so than ISIS." "So I view Vladimir Putin, who has dismembered Ukraine, a sovereign nation, who is putting pressure on the Baltics - I view the Russians as the far greatest challenge that we have," McCain said. McCain cited Russia's alleged involvement in the American presidential election.