Actually I think Keeler (and Logan) are Democrats.
The election that Palmer dropped out of in Season 3 where he was running against Keeler was a primary. Keeler got the nomination because Palmer dropped out.
When Palmer tells Wayne he is dropping out, he says that "the party will be thrown into chaos. Whoever is nominated won't stand a chance and Keeler will win."
Hey did you see Glenn Beck last night? He played clips of Bill Cosby at a graduation ceremony. Cosby was telling the students that they hear that it takes a village to raise a child. Cosby then said don't forget there are prostitutes and gang members in that village! LOL Wish someone would send that clip to Hillary Clinton.