MOLINE, Ill., Aug. 25 -- In a private meeting with Sen. Barack Obama after she conceded the race for the Democratic presidential nomination, Sen. Hillary Rodham Clinton made a request: that he consider her for his vice presidential running mate, but not put her through the charade of being vetted if he was not serious.

Obama told Clinton then it was unlikely he would choose her, people familiar with the conversation said. Obama did not want to lead her on and, after campaigning against her for more than a year, already had a sense that their pairing would not be the right fit.

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The question of how seriously Obama considered tapping Clinton for the ticket has become a source of unhappiness for both sides of late. Clinton was never asked for the official vetting paperwork when other potential running mates were. Obama never invited her to have a real conversation about potentially joining forces, although the two spent time together at several events.

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The arguments against Obama choosing Clinton were evident from the start: Her campaign, rife with internal struggles, bore no resemblance to his tightly run operation; the two had little personal chemistry; and hard feelings lingered after what had been a bruising primary.

Read whole story here: Obama Signaled Early That He Was Unlikely To Choose Ex-Rival