Rep. Tom Latham (R-Iowa) announced Tuesday that he won't seek reelection in 2014, becoming the third member of the House in one afternoon to announce his retirement.

"It is never a perfect time or a right time to step aside," Latham wrote in an e-mail to supporters. "But for me, this is the time. I want to share with you my decision that I will not be a candidate for any office in November of 2014."