Loebsack endorses Braley for US Senate DAVENPORT, Iowa (AP) — Rep. Dave Loebsack is endorsing his Iowa congressional colleague and fellow Democrat, Rep. Bruce Braley, for U.S. Senate in 2014. Loebsack says after serving with Braley in Congress for six years, he's convinced Braley is the best choice to succeed Harkin and will "fight to strengthen middle class families and to make life better for Iowans."