Long-serving Missouri Republican Rep. Sam Graves has decided not to run for reelection. He said Friday in a social media post that he is “making room for the next generation” in Congress. Graves leads the House Transportation & Infrastructure Committee and has been at the center of discussions about aviation safety. The solidly GOP and rural northern part of Missouri he's represented since 2001 is considered safe for Republicans. So far, 58 House members are stepping down or running for some other office, putting Congress on track for record turnover.