What kind of racism will we see from the left when Mr. Cain runs?

I don't think you'll see racism against Mr. Cain coming from the left. You forget that Barack Obama was overwhelmingly elected BY the left. The right still doesn't realize that the left looks at the message and not the messenger. I do not believe that Mr. Cain will get the support from the Republican Guard that he will need to become the Republican candidate for the presidency.