This is entirely speculative, of course. In fact, I think Hillary would be nuts to challenge Obama no matter how bad his numbers or how badly the Democrats are trounced in November.Those very same people on hands and knees begging Hillary to run after the Democrats are spanked in November will be the first ones kowtowing to Obama when the going gets tough. Only someone with a supreme ego and a rock solid belief in their own righteousness would challenge a sitting president from their own party.So maybe it's not such a farfetched idea after all?Gallup: If Secretary of State Hillary Clinton were to challenge President Barack Obama for the Democratic presidential nomination in 2012, she would currently have the support of 37% of Democrats nationally, while 52% would support Obama.[...]Presidents with relatively low job approval ratings heading into a possible re-election bid are vulnerable to intra-party challenges. As two examples, Gerald Ford and Jimmy Carter were challenged for their...(Read Full Post)