[Alouette]

Logan was a Republican, the first Palmer was a democrat.

Logan was David Palmer's VP, that would make him a democrat.

[SoothingDave]

Logan was David Palmer's VP, that would make him a democrat

No, he wasn't. We first met Sen. Logan as he prepared to debate Pres. Palmer. Logan was the Republican candidate for president.

[CastleMan95]

"Minor Past Season Spoilers"

I believe Logan was the VP of the president after Palmer. I cant recall his name but he was in Air Force One which crashed outside of LA (of course). That President was incapacitated therefore Logan assumed the Presidency at the end of Season 4 and may have been elected prior to Season 5. Someone else may be able to recall the details more accurately if I don't have them correct.

[NeoCaveman]

Logan was David Palmer's VP, that would make him a democrat.

Logan was Keller's (or whoever that president that went down in the plane crash) vice president.

[EmilyGeiger]

Logan wasn't Palmer's V.P. He was the republican vp of the President that was in air force one when it was shot down. I believe that was season 3 0r 4. Palmer lost to the republican candidate at the end of season 2.....

[misterrob]

No way. Palmer did not stand for reelection after Sheri was killed. That allowed the Republicans to take over.

[MadIvan]

Logan was David Palmer's VP, that would make him a democrat.

No. Palmer decided to serve only one term in Season 3, under pressure from Keeler, a Republican. Logan was Keeler's VP. Keeler was knocked out of the picture in Season 4 after Marwan blew up Air Force One. Logan then obviously had Hal Gardner appointed as VP. Logan's criminality then had the likely consequence of a brief period of "President Gardner"; now it's President Wayne Palmer.

So to recap, the line goes like this:
Palmer (D)
Keeler (R)
Logan (R)
Gardner (R) (unseen)
W. Palmer (D)

Regards, Ivan