Oh, Lorne Michaels, you poor, poor old fool. You really thought it was a good idea to have Fred Armisen do Obama, didn’t you? After all, what illustrates our hope for a post-racial America better than a good old-fashioned blackface comedian mocking our negro President? Egads.Well, it appears maybe Lorne’s changed his tune. Last night Dwayne “The Rock” Johnson played Obama, was apparently quite funny doing it, and the audience didn’t have to feel guilty if they laughed. Bonus!Then again, since this is SNL we’re talking about, I haven’t had to feel guilty any time I’ve watched the previous sketches, since the writing has been as painful to watch as the tone-deaf choice of impersonator (bah-ZING!).