NEW YORK — Rep. Charles B. Rangel (D-N.Y.), among Hillary Rodham Clinton’s top African-American supporters, was none too pleased with Clinton’s comments this week to USA Today that she has broader appeal with white voters. The statement was “the dumbest thing she could have said,” Rangel told reporters before a Clinton fundraiser in a midtown hotel ballroom Saturday. He called her statement “very poorly worded” but acknowledged there may be some truth to it. “In any campaign, there are groups of people that you know that you have and groups of people that you don’t,” he said. “And I don’t...