Butch Otter, Governor of Idaho, is actively searching for a replacement for Craig. He's met with Craig and is doing this "just in case." Which means that come October Idaho will have a replacement Senator.

One possibility is Jim Ritsch, who was Lt. Governor under Kempthorne and Acting Governor between the time Kempthorne was made Sec. of the Interior and Otter was elected. He's not a bad man, really.