UNLIKE, SAY, PUTIN: Bob Corker: Obama ‘uncomfortable’ as commander in chief.

The senior Republican on the Senate Foreign Relations Committee said President Obama is “uncomfortable” in his role as commander in chief and that his awkwardness has damaged his standing internationally and on Capitol Hill.

Tennessee’s Sen. Bob Corker told CNN Wednesday that while Obama is a “very confident person” in interpersonal settings, his effectiveness as a communicator — as seen the previous evening when he addressed the nation on Syria — fails on larger audiences.

“He just cannot follow through,” the senator said. “He cannot speak to the nation as a commander in chief. He cannot speak to the world as a commander in chief. He just cannot do it. And I don’t know what it is.”

Plus: “He is a diminished figure here on Capitol Hill. I can assure you of that.”

Related: Congressional Outreach: White House cancels picnic for Congress.