Rep. Sam Graves, a Senior House Republican, Will Retire as Midterm Exodus Grows

Representative Sam Graves, the chairman of the Transportation and Infrastructure Committee, said he would leave Congress after nearly three decades, the latest sign that the G.O.P. is bracing for big losses.Representative Sam Graves in 2024. Although his exit was unlikely to affect the balance of power in the House given the strongly Republican bent of his Missouri district, his role as chair of the Transportation Committee would have been at stake in the midterms.