Former pizza magnate Herman Cain dropped out of the presidential race on Saturday after accusations of sexual misconduct overwhelmed his bid to win the Republican nomination as an anti-Washington tax reformer. Cain's departure set off a competition among other candidates to win over his conservative supporters with voting to start next month in the race to determine the Republicans' presidential pick for 2012 to oppose President Barack Obama. Cain, a former Godfather's Pizza chief executive, told followers in his hometown of Atlanta that "false and unproved" sexual accusations had forced him to suspend his White House bid. He said he...