Harlem was once the only place in the nation where Hillary Rodham Clinton could count on black support. Now it's hard to find any Clinton backers there, even in the shadow of her husband's 125th Street office. In New York's February primary, she carried Harlem, 54 to 46 percent. But Obama has been winning 90 percent or more of the black vote elsewhere. Harlemite Cush Lunby, 25, backed Hillary because he liked Bill as president, but switched because he likes Obama's "ideas on health care [and education] . . . and I think he's very poised under pressure."

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