There will also be another Cheesehead pol on the national radar screen, Scott Walker, the next Governor of Wisconsin. If not Ryan, look for a Republican POTUS candidate to tap Walker in '12 or '16 for VP, or perhaps a cabinet position in '13.
Seriously though, Obama’s going to be an extremely tough candidate to beat. There’s no sign of a Ross Perot to split the Democrat vote, so why would any sensible Republican stand against him? Americans don’t give candidates second chances these days.
I think it does, at least at the very top. IIRC, no candidate of either major party, Democratic or Republican, has won a presidential nomination a second time after having lost it once, since Nixon in 1968 (who lost in 1960).
Ah, perhaps. But I think the sample size for that scenario is so small as to be non-indicative of anything at all.
Personally, not being a political history wonk, I can only name two other candidates that might fit that bill – Grover Cleveland and Teddy Roosevelt. I figure Cleveland 'cuz he was elected to non-consecutive terms, and so likely lost the general election in between; I figure Roosevelt might qualify 'cuz of his Bull Moose candidacy, even though the 3rd party status disqualifies it from bearing any weight here.
And of course, once you go back more than a 1/2 century, the character of any party becomes rather shaky IMO. I don’t think one can legitimately draw conclusions too far beyond that timeframe…