Secretary of State Rex Tillerson Rex Wayne TillersonGary Cohn: 'I haven't made up my mind' on vote for president in November Kushner says 'Alice in Wonderland' describes Trump presidency: Woodward book Conspicuous by their absence from the Republican Convention MORE on Sunday pushed back against comments from Sen. Bob Corker Robert (Bob) Phillips CorkerHas Congress captured Russia policy? Tennessee primary battle turns nasty for Republicans Cheney clashes with Trump MORE (R-Tenn.) that Trump is trying to "publicly castrate" his chief diplomat.

"I checked, I'm fully intact," Tillerson said on CNN's "State of the Union."

The secretary of State also said he thinks Trump is an "unconventional" president who uses unconventional communication tools and techniques to motivate change.

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Tillerson said people who have been around Washington for a long time do not like change.

"The last thing anybody likes to do in this town is make a decision," he said. "Because when you make a decision, you're suddenly accountable for that decision."

Tillerson said Trump is trying to motivate people to change.

"People in this town get very nervous and get very uptight about having to address serious issues by making decisions," Tillerson said, adding the president is trying to do that in his "very unique style."

The secretary of State also said he's fully committed to Trump's objectives.

His comments come after Corker in an interview with The Washington Post ripped Trump over his relationship with Tillerson.

“You cannot publicly castrate your own secretary of State without giving yourself that binary choice,” Corker told the Post.

“The tweets — yes, you raise tension in the region [and] it’s very irresponsible. But it’s the first part that I am most exercised about.”