NEW YORK - (AP) - Rep. Gary Ackerman, a 15-term Democrat who has held key committee posts that help shape foreign policy and the regulation of financial institutions, announced Thursday he will not seek re-election. The congressman, who has represented diverse communities in Queens and part of Long Island, said in a statement that although new congressional boundaries were extremely favorable, he would not seek another term. "I have been truly privileged to have had the opportunity to fight for the beliefs of my neighbors," said the 69-year-old lawmaker, who lives in a houseboat while in Washington, D.C., and regularly wears a white carnation on his suit lapel. Ackerman is a senior member of the House Foreign Affairs Committee and has been outspoken on several global issues, including U.S. support for Israel and the threat it faces from Iran. Prior to his tenure in the House, he served as a New York state senator. He also serves on the Financial Services Committee, which has jurisdiction over the banking system.