As Republicans face a potential Democratic wave in this year's midterm elections, Republican Sen. Jeff Flake argued Thursday that his party "might not deserve to lead" given its support for President Donald Trump. "If we are going to cloister ourselves in the alternative truth of an erratic leader, if we are going to refuse to live in a world that everyone else lives in ... then my party might not deserve to lead," the Arizona senator said in a speech at the National Press Club.