Joseph Kennedy III, son of former U.S. Rep. Joseph P. Kennedy II and grandson of late Sen. Robert F. Kennedy, gestures Thursday while visiting voters outside a polling station at a school in Needham, Mass. He won the Democratic primary election for the House seat being vacated by U.S. Rep. Barney Frank. (Associated Press)

Photo by: Steven Senne

Joseph Kennedy III, son of former U.S. Rep. Joseph P. Kennedy II and grandson of late Sen. Robert F. Kennedy, gestures Thursday while visiting voters outside a polling station at a school in Needham, Mass. He won the Democratic primary election for the House seat being vacated by U.S. Rep. Barney Frank. (Associated Press)