British Prime Minister Boris Johnson faced a fresh political headache Friday following the resignation of the deputy chief whip of his ruling Conservatives over allegations he drunkenly groped two men. In a letter to Johnson sent late Thursday, Tory MP Chris Pincher said he was quitting his post after he drank "far too much" and "embarrassed myself and other people" the previous evening. Numerous reports said he had also been accused of groping two men in front of others at the private members Carlton Club in central London, prompting complaints to the Conservative party. His departure from the whips office and Johnson's embattled government is the latest in a string of sexual impropriety scandals involving Tory MPs in recent months. It also follows a catalogue of controversies to hit Johnson himself, including the so-called "Partygate" affair that led his own lawmakers to trigger a no-confidence vote in him last month which he narrowly survived. The resignation leaves Johnson with another post to fill in his senior ranks after the chairman of the Conservatives quit last month after the party lost two by-elections. A Downing Street source told British media that Pincher would...