WASHINGTON -- The racially charged debate over Barack Obama's relationship with his longtime pastor hasn't much changed his close contest against Hillary Clinton, or hurt him against Republican nominee-in-waiting John McCain, according to a new Wall Street Journal/NBC News poll.

Democratic pollster Peter Hart, who conducts the Journal/NBC polls with Republican pollster Bill McInturff, called the latest poll a "myth-buster" that showed the pastor controversy is "not the beginning of the end for the Obama campaign."

But both Democrats, and especially New York's Sen. Clinton, are showing wounds from their prolonged and increasingly bitter nomination contest, which could weaken the ultimate nominee for the general-election showdown against Sen. McCain of Arizona. Even among women, who are the base of Sen. Clinton's support, she now is viewed negatively by more voters than positively for the first time in a Journal/NBC poll ...

While Sen. Clinton still leads among white Democrats, her edge shrank to eight points (49% to 41%) from 12 points in early March (51% to 39%). That seems to refute widespread speculation -- and fears among Sen. Obama's backers -- that he would lose white support for his bid to be the nation's first African-American president over the controversy surrounding his former pastor, the Rev. Jeremiah Wright Jr. of Chicago.