So Oprah has decided to throw her considerable influence behind Obama for President. Just this weekend, she already raised some serious bucks ($3 million) at a shindig at her Santa Barbara home. But the bigger contribution will be her influence. Lady O reaches over 8 million people on TV, and millions more via her magazine, website, and other media. She's never endorsed a candidate before, and it seems she may be willing to seriously go to bat for him. Not clear yet whether she would take an active role in his direct campaign, or simply do her own thing (as a 527). Either way, this is great news for the distinguished gentleman from Illinois (and in my opinion, great news for America).
I haven't heard yet if Letterman (or Uma Thurman) had any comment.