１。民主自由精英，可以通过他拿钱。
２。帮助民主党在红州拿众议院选票。
３。McCain当总统，保证Pelosi and Reid 4年的 ｍａｊｏｒｉｔｙ ｌｅａｄｅｒｓ
４。McCain当总统， ＤＮＣ又可以有４年的政治献金进帐。 http://hillbuzz.blogspot.com/2008/06/did-howard-dean-nancy-pelosi-and-harry.html
分析得挺有道理。
So, Obama could serve a few purposes for the DNC:
1. he appeases the liberal elite, who could be counted on to funnel money to
the DNC through Obama
2. he could help pick up seats in Congressional districts where his base
overwhelms the GOP
3. his loss to McCain would guarantee 4 more years
