He says he cannot "in good conscience" support Mukasey because the nominee refused to condemn waterboarding.
Like Romney, New York Mayor Rudy Giuliani has refused to explicitly rule out waterboarding.
When Huckabee was asked yesterday whether he thinks waterboarding is illegal, he said, yes, I do.
CNN's Melissa Long speaks with YouTube contributor Andrew Jones about the responses to his query on waterboarding.
Attorney General Michael Mukasey almost was not confirmed based on his refusal to classify waterboarding as torture.
Obama said he could not "disagree more" with proponents of so-called enhanced interrogation techniques such as waterboarding.
Obama prohibited the use of so-called "enhanced interrogation techniques" such as waterboarding shortly after taking office in January.
American soldiers were court-martialled for waterboarding captives as recently as the Vietnam War.
But Graham insists they were told nothing about waterboarding or other harsh tactics.
All 12 retirees have been critical of the Bush administration's endorsement of enhanced interrogation techniques, including highly controversial practices such as waterboarding.
And at last week's debate, McCain attacked Romney for refusing to say outright that the interrogation technique of controlled drowning known as waterboarding is torture.
As Republican lawmakers complained about the administration's release of four documents last week that had authorized waterboarding and other controversial methods, Democrats praised the release.
Rumsfeld's role in approving the use of illegal interrogation techniques such as 'waterboarding' and the terrorizing of detainees with guard dogs is no longer in doubt.
During the debate, German social democrat MEP Wolfgang Kreissl-Dorfler attacked the recent comments by former US President George W Bush on the use of waterboarding as an intelligence gathering tool.
Furthermore, interrogation techniques like waterboarding are not used there.
And there are a lot of liberal commentators saying, what is the President of the United States -- the current President -- going to do about this, when you have a former Vice President basically saying, I'm a supporter of waterboarding, and basically that the last administration did waterboard, when this current President has said that waterboarding is torture and is thus illegal?
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