WASHINGTON -- Recently, Barack Obama -- a Demosthenes determined to elevate our politics from coarseness to elegance; a Pericles sent to ameliorate our rhetorical impoverishment -- spoke at the University of Michigan. He came to that very friendly venue -- in 2012, he received 67 percent of the vote in Ann Arbor's county -- after visiting a local sandwich shop, where a muse must have whispered in the presidential ear. Rep. Paul Ryan, R-Wis., had recently released his budget, so Obama expressed his disapproval by calling it, for the benefit of his academic audience, a "meanwich" and a "stinkburger."