Why did President Obama push Clinton to concede? [View all]

I understand that he believes strongly in the peaceful transition of power, but it seems odd to me that he thought it was such an emergency for her to concede the second the networks called Pennsylvania. It seems out of character for him to push her to concede so soon instead of letting her do it on her own terms.

I don't think it was about preserving his legacy, because his legacy was much more threatened by a Trump presidency, and Bill Clinton's legacy wasn't negatively affected by Gore contesting the election in 2000. If anything, pushing her to concede threatens his legacy by pissing off a lot of her supporters.

I get the peaceful transition of power thing, but it was not necessary for her to concede the second the networks called the election to ensure a peaceful transition of power. Given the shock of the results, it would seem reasonable to want to wait and make sure the projections were correct. It would be one thing if he pushed her to concede the next day or even a few hours later, but to call her so soon after the projections to push her to concede is really strange.

I am ruling out any theory that suggests he didn't want her to win. If that were the case he would have given the expected endorsement at the convention and left it at that, instead of going all out for her.

Something seems really off here.