Hillary Clinton campaigns in Harlem

Hillary Clinton courted the African American vote in a speech at Rev. Al Sharpton's National Action Network. It was her first speech there since 2007.

The Democratic front runner went after Republicans and what she described as bigotry from Donald Trump and Ted Cruz. The former secretary of state repudiated her potential opponents, telling the group she celebrates New York's diversity.

If Clinton wins New York, it may be because of her strong support among people of color. Right now the former secretary of state leads Bernie Sanders among black voters by a monster 37 points, 65 percent to 28 percent, according to a new poll.