First up, here’s Ralph Nader:

There’s only one thing different about Barack Obama when it comes to being a Democratic presidential candidate. He’s half African-American. Whether that will make any difference, I don’t know. I haven’t heard him have a strong crackdown on economic exploitation in the ghettos. Payday loans, predatory lending, asbestos, lead. What’s keeping him from doing that? Is it because he wants to talk white? He doesn’t want to appear like Jesse Jackson? We’ll see all that play out in the next few months and if he gets elected afterwards.

And here’s D. L. Hughley from last night’s BET awards:

“And then you’ve got John McCain. And it’s so funny, because you’ve got a guy who’s half-black running against a guy who’s half-dead.”

I guess the half-blackness of Obama is only a media outrage when Ann Coulter says it. From Media Matters:

Summary: During a speech to the Young America’s Foundation, right-wing pundit Ann Coulter said of Democratic presidential candidate Sen. Barack Obama, “Barack’s really been kind of coasting on his record, since his first big accomplishment of being born half-black. … He wouldn’t be running for president if he weren’t half-black.”