Cafferty: Clinton v. Palin: Who has more credibility?

[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2008/images/09/15/art.clinton.palin.gi.jpg caption="Who has more credibility Clinton or Palin?"]

Campaigning for Barack Obama in Ohio this weekend, senator Hillary Clinton revised one of her "zingers" from the democratic national convention last month - "no way, no how, no McCain..."

Yesterday she added, "no Palin."

Clinton went on to criticize the McCain ticket but did not single out Governor Sarah Palin again in the speech.

Palin meanwhile hit the campaign trail solo in Colorado today.

She told voters there that she and John McCain were going to shake up Washington.

Hindsight being what it is, some are questioning whether Barack Obama made a mistake when he chose senator Joe Biden instead of Hillary Clinton as his pick for vice president.

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