Could Hillary successfully challenge Obama in 2012?

[J. J.]

I doubt if she could successfully challenge Obama, but I wouldn't be too surprised if he was challenged.

[J. J.]

I'd love for her to run, just so I'll have a decent option to vote for should the GOP nominate someone insane.

How is she different than Obama in that regard?  The only difference I can see is she might fight the Republicans harder.

Economically, she was much different than Obama. 

I could see someone like Jim Webb, Evan Bayh, and other blue dogs primarying Obama.

Possible, but don't think they'd win.

[J. J.]

I doubt if she could successfully challenge Obama, but I wouldn't be too surprised if he was challenged.

I'm of pretty much the exact opposite opinion here. Obama's a sitting President with an insane fundraising ability; nobody will attempt to primary him unless they're crazy or somehow strong enough to compete. Hillary is probably the only person that could successfully challenge Obama; but she'd only do it if the writing on the wall was obvious and she was certain of victory.

I doubt if Hillary!, or any Democrat, could successfully challenge Obama for the Democratic nomination.  I do think that there is a reasonable chance that he will be challenged (though probably not by Hillary), and not successfully.