Apparently Barack Obama is not only far less popular than some of us previously thought, but he can take down the careers of anyone who comes in contact with him. Even Oprah Winfrey! I hate to hint and run, but I’m short on time so you can read more here. (Warning, large snark and satire content.) And in case you think it’s just comedy, the story really came from The Poltico.
One would have to imagine it was politics in general, not “Boy King” Obama, that is at fault here. The American public tends to have a negative reaction to celebrities entering the political sphere.
Certainly coming out to support one of the most popular politicians in the country (in Obama) is not career suicide, but when you enter into politics, you're not going to get a 100%.