Check out the UCMJ, then get back to us. How he talks about the president when he's active duty can earn him a court-martial.
You mean like telling Congress the truth under oath? Lt. Col. Vindman swore an oath to the U.S. Constitution - not Trump.
I mean like expressing contempt for the CIC can get him court-martialed. He has to be careful how he expresses himself.
Testifying to his experience is not "expressing contempt", dope.
That's why I said he had to be careful HOW he expresses himself. Perhaps you didn't read what I wrote.
I've read everything you've written and it's all irrelevant.
You could not have come to that conclusion if you had. You looked at what I wrote, substituted your own thoughts, then proceeded to complain about them. Straw man much?