The leadership change from President George W. Bush could present Karzai with new challenges in his relationship with the U.S.Funny how that works.
Obama has chided Karzai and his government in the past, saying it had "not gotten out of the bunker" and helped to organize the country or its political and security institutions.
Fighting terrorism and the insurgency "in Afghanistan, the region and the world is a top priority," Karzai's office quoted Obama as saying.
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