Rep. Charles Rangel, a powerful senior Democrat in Congress and the dean of New York's congressional delegation, said Wednesday that he'll quit Congress if the Democrats don't retake control of the House this year. "I'm a poker player and I've had good hands all night long. This is all in," Rangel said in an interview. "I would not put everything on the table if I thought for one minute we would lose." Rangel, the ranking Democrat on the House Ways & Means Committee, is 76 years old and has spent 35 years in Congress. The Democrats need to gain 15...