Senate Armed Services Committee Chairman John McCain John Sidney McCainCOVID response shows a way forward on private gun sale checks Trump pulls into must-win Arizona trailing in polls Nonprofit 9/11 Day bashes Trump for airing political ads on Sept. 11 anniversary MORE (R-Ariz.) said Sunday that a select committee must be formed to investigate every aspect of Russian interference in the U.S. 2016 presidential election.

“Every time we turn around, another shoe drops from this centipede,” McCain told host Martha Raddatz on ABC’s “This Week with George Stephanopoulos.”

“We need to examine every aspect of it: President Trump’s priorities, and the other priorities many of us believe exist,” McCain said.

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McCain said the investigation must look into the motives behind Russia's interference and methods to prevent Moscow from meddling in future campaigns.

“Obviously, if there was intentional disclosure of names of people who were in the Trump campaign, that has to be revealed. But the fact is that we know for a fact the Russians tried to change the outcome of our election, attacking the very fundamental of democracy,” McCain said. “We need to know how, we need to know why, and most of all we need to know what to do to prevent this kind of activity, which they continue to carry on in free nations around the world.”

McCain said the Russian government’s recent actions “echo” its behavior during the Cold War, saying “they tell flat out lies.”

He also pointed to Russian meddling in foreign affairs around the globe with little to no repercussions.

“They are succeeding in continuing their dismemberment of Ukraine, they are succeeding in exerting an enormous influence in the Middle East which they never had before, they have succeeded in interfering with our election and we know they continue that in the French election and other elections. And so far, they have paid a little or no penalty for all of this misbehavior,” McCain added.

McCain, a frequent Trump critic, praised the president's national security team, saying its members know about the Kremlin’s activity.

“And by the way, I think the national security team that the president has assembled is outstanding. And I hope that he listens to them, because they don't have any illusions about Vladimir Putin and Russian behavior,” McCain told Raddatz.