Secret-service chief denies; Portman's a vanilla veep choice; and more Edwards trial (read-this roundup) Here's what the Loop's reading this morning: U.S. Secret Service Director Mark Sullivan testified. (Charles Dharapak - AP) What scandal? - Secret Service Director Mark Sullivan put in an entertaining performance while testifying before Congress about his agency's prostitution scandal, according to our colleague Dana Milbank. His blithe denials "had the effect of elevating the scandal category from embarrassment to possible coverup." Vanilla veep - Here's why Sen. Rob Portman (R-Ohio) would make a perfect vice-presidential candidate, in his own words: "I'm so boring that I didn't even know I was boring," he says, according to our colleague Michael Leahy. Courtroom drama - Jurors in the case against former Sen. John Edwards are following the "Bunny money," our colleague Manuel Roig-Franza reports. Meanwhile, our colleague T.W. Farnam reports that legal experts are giving the edge to Edwards - if he's convicted, they say he's likely to win an appeal.