I think his enthusiastic support, not only in the endorsement but in the campaign, along with very importantly Bernie Sanders' enthusiastic support if that were to come would be very, very helpful for Mrs. Clinton.
David Gergen discusses the importance of President Obama's and Bernie Sanders' support for Hillary Clinton's candidacy.
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It is vital that as President, tell his base and tell the whole country that he believes Joe Biden is a legitimate President, that he has not been put there by fraud.
Sadly, you know, I think for a variety of reasons he should not. I just, I don't think either Trump or Biden should be running.
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