When speaking before the Judiciary Committee investigating President Joe Biden and his son Hunter, former United States Attorney Scott W. Brady promised he’d fact-checked the claims of the GOP’s star witness — a man arrested last week and accused of lying to the FBI. Tuesday’s Politico Playbook claimed that the allegations by FBI informant Alexander Smirnov were never confirmed — but, as national security expert Marcy Wheeler pointed out, Brady said the opposite under oath. When Brady testified to the Committee on the Judiciary on Oct. 23, 2023, he was asked straight out whether he’d fact-chec…