Andrew Sullivan talks about something that I've long worried about - The Churchill Paradox. It befell his father (in part) and the early capture of Osama will certainly remove the overriding reason to keep him in office over anyone the Democrats might nominate.
Is it enough for them to delay Osama's capture (or to withhold information on it if he was captured)? I do not know, and I certainly don't think it was the agenda when we responded in Afghanastahn or Iraq, however at this late stage of the game . . .