GOP Rep. Latham to pass on Iowa Senate bid Associated Press Copyright 2013 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed. Updated 1:44 pm, Wednesday, February 27, 2013 DES MOINES, Iowa (AP) — An Iowa congressman who had been considered the establishment Republican choice for the seat vacated by retiring Democratic Sen. Tom Harkin says he won't seek the job. Democratic Rep. Bruce Braley, a four-term House member from Waterloo, is the only announced Democrat for the seat.