Iowa congressman Tom Latham, widely believed to be the only state Republican besides his fellow Republican House member Steve King to be seriously considering making a Senate bid, announced in a letter today that he won’t run:

[O]nly 56 days ago I took an oath to “faithfully discharge the duties” of an office with which the people of Iowa’s Third Congressional District entrusted to me. I cannot in good conscience launch a two-year statewide campaign that will detract from the commitment I made to the people who elected me, at a time when our nation desperately needs less campaigning and more leadership.

King has already been singled out by Karl Rove’s Conservative Victory Project as a GOP candidate who could possibly derail his general election chances with a verbal faux pas.