Joe Biden on Friday twice made joking references to complaints from women that his physical behavior made them uncomfortable. The former vice-president’s comments came during his first public appearance since the allegations began to surface last week. Taking the stage in Washington at a gathering of the International Brotherhood of Electrical Workers, Biden was introduced by the president of the union, Lonnie Stephenson. Biden quipped: “I just want you to know – I had permission to hug Lonnie.” The crowd, which was mostly male, erupted in laughter. Later, Biden made a similar joke after inviting a group of children onstage...