A prominent Fox News host — who is no stranger to unhinged takes — unleashed a baseless, conspiratorial rant Thursday that Democrats want the president to fail and that the White House is actually run by a drug-user, a fake doctor, and a sex fiend. Judge Jeanine Pirro remarked on the show “The Five” that President Joe Biden is facing swirling questions over his competency on the same day that former President Donald Trump was initially supposed to be sentenced for his conviction on 34 felony counts in the infamous New York hush money case. “Now, Joe Biden himself is holding on for dear life,” …