do they really think that insulting African-Americans is a good strategy now?

Gallagher on Powell’s endorsement: ‘Race is the factor I think that drives much of this.’

Responding to former Secretary of State Colin Powell’s endorsement of Sen. Barack Obama (D-IL), right-wing talker Mike Gallagher declared on his radio show today that “race is the factor I think that drives much of this” because Powell is “enamored and in love with the concept of a black man being president of these United States.” Gallagher then suggested that Powell might not “have the intellectual capacity to, you know, make a distinction and realize the difference” between Obama and the “long list of black Americans who would make fine presidential candidates.”

(Think Progress)
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This is getting crazier and crazier! Now, they are insulting all African-Americans by saying Obama's skin color is the only reason they would vote for him.
McCain's campaign has insulted amost everyone in this country. How are they getting anyone at all (other than overt racists) on their side anymore? Who's left to insult?