From GoogleNews : WASHINGTON — The success of President Barack Obama's ambitious agenda — from health care and climate change to education — could depend on how quickly he recovers from the sharp drop in support among white voters after criticizing a white policeman's arrest of a black Harvard scholar. Obama's widely publicized effort to defuse the first racial flare-up of his young presidency by inviting the protagonists to the White House last week for beers and conversation ended well by most accounts, even though there were no apologies. Cambridge, Mass., police Sgt. Joseph Crowley and Harvard scholar Henry Louis Gates Jr. agreed to disagree about the July 16 confrontation at Gates' home and pledged to meet again. Obama's impromptu comments about the incident could become a defining moment. Nearly immediately after Obama's remark that police had "acted stupidly" in arresting Gates, his approval rating plummeted among whites, dropping over two days ...