Sen. John McCain (R-AZ) expressed frustration this afternoon at having no advance knowledge about the military's decision to lift its ban on transgender service members.

Defense Secretary Ash Carter made the official announcement this afternoon, while senior military leaders reportedly wanted more time to develop and implement the complex new rules.

McCain, chairman of the Armed Services Committee, said in past administrations, the chairman would get a "heads-up" on a policy shift like this.

"I've just heard about it when you have. It's very hard for me right now to make a judgment," said McCain. 

He said he will call military leaders and look into the costs of lifting the ban and consider holding hearings.

Kimberly Guilfoyle said it's "astonishing" that one of the leading U.S. senators would not even have a heads-up on this announcement. 

McCain wondered whether the administration is more interested in the "publicity," explaining that this will require some legislation to be passed.

McCain said he doesn't hear much directly about what this administration does, including in Iraq and Syria, and generally has to rely on the media. 

"I've never seen anything like this. I've dealt with Democrat and Republican presidents but never an administration that treats the Congress with not just disdain, but contempt."

Watch the full interview, including McCain's reaction to U.S. sailors giving up information to Iran. 

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