House Foreign Affairs Committee Chairman Michael McCaul (R-Texas) was charged with being drunk in public at Dulles International Airport, according to a spokesperson for the Metropolitan Washington Airports Authority.  The incident, first reported by Semafor, occurred about 9 p.m. on Nov. 4, a day before the presidential election. He was released on a summons to a third-party driver, the spokesperson said.  “Two weekends ago, I made a mistake — one for which I take full responsibility,” McCaul said in a statement. “This incident does not reflect who I am and who I strive to be.”  McCaul said he made “a poor decision” to mix “some alcohol” with Ambien, which he took to sleep on a flight. His spokesperson described him to Semafor as a “nervous flyer.” The charge is a Class 4 misdemeanor under Virginia law, which carries a fine of up to $250.