President Obama will speak at the University of Arizona on Wednesday. As he should. I hope (and expect) that he’ll do a better job with this appearance than Bill Clinton did when he gave the commencement address at Michigan State University in 1995, in the wake of the Oklahoma City bombing. Clinton saw an opportunity to link his conservative political opponents to bomber Timothy McVeigh. He seized it. Here are a few excerpts. A hectoring, nauseating performance–one of the real low lights in a presidency that had a few.