Obama received no votes in Harlem.

In the Democrat New York primary, much of Harlem apparently voted unanimously for Hillary:

Unofficial primary results gave Obama no votes in nearly 80 districts, including Harlem's 94th and other historically black areas - but many of those initial tallies proved to be wildly off the mark, the board said.

H/T New York Post

Remember this the next time someone claims that the Republicans suppressed votes in 2000. The Democrats' ability to create a "zero" vote total for Obama in Harlem is not something that we should underestimate. The Democrats have been undermining the electoral process for many years, but this one is as obvious as they have gotten.
In light of Hillary's near total flame-out this primary season, I can only wonder what the true vote total was in 2000 when Hillary "beat" Rick Lazio.