Senator Barack Obama probably gets the biggest boost, the experts say. He has been the pro-engagement candidate and has said explicitly that he would be willing to talk to Iran’s leaders and take the idea of regime change off the table. He has also intimated that he would reach out to Kim Jong-il, going so far as calling the idea of not talking to America’s adversaries “ridiculous.”
Senator Hillary Rodham Clinton does not get as big a boost as Mr. Obama, the experts say, because she has expressed some get-tough language against Iran, including voting in favor of designating Iran’s Islamic Revolutionary Guard Corps a terrorist organization.
Senator Joseph R. Biden was quick to criticize Mr. Bush for maintaining a hard line against Iran even after the new intelligence estimate concluded that Iran had stopped work on a nuclear weapon in 2003. Mr. Biden, who is running primarily on his experience and expertise in foreign policy, gets a moderate boost.
John Edwards, the former North Carolina senator, has established himself as an economic populist, but has made few waves on the national security scene, experts say, so the week’s events are a wash for him.
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http://www.nytimes.com/2007/12/08/us/politics/08web-cooper.html?_r=1&8dpc&oref=slogin