For some reason, it's not an apples to apples comparison. As someone said upthread, left wing extremists haven't dominated the Democratic Party as Tea Partyiers have come to take over the "directional arc" of the Republican Party.
It's axiomatic in politics that the hard-core; those that make the calls, knock on doors, give early, stuff envelope, have first and early say on the slate of candidates. It's always been that way.
Honestly, I think Mitt Romney, and probably to a lesser extent McCain in the previous cycle, are held a bit "hostage" to the Tea Party/Republican base. Looking at his Massachuttes (sp, I know) record, I have no doubt he's a moderate. But he's beholden to this current party's dominant group think(his Ryan selection was another sop to them).
Were he a "freer" candidate, allowed to run closer to his own (historic?) views, I think he'd be a more formidable candidate among the sliver of independents who may tip this election. (of course, he wouldn't have the Rep base, so there is that.)
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For the Son of man came to seek and to save the lost.
~ Luke 19:10
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