The rationale is my own:
Leach, Chafee, and Hauser cited the presidential hopeful’s approach to foreign policy and to the economy as reasons for supporting him over McCain, saying the Arizona senator would continue Bush Administration policies — from the war in Iraq to an unwillingness to engage enemies in direct diplomacy — that have hurt America’s standing in the world and its financial stability. Chafee said "we’ve seen our credibility shattered" over the last eight years. Added Leach: "The prospect that we’ll have more of the same — that is the source of angst of many Republicans around the country."
More debt, more war and more aggression. My worries too. Yes, I know Obama is no fiscal tightwad. But the CBO scores his proposals as less damaging to fiscal balance than McCain’s. And do we really want to the Cheney foreign policy shop staying in the driver’s seat?
The Dish 