Senior Obama administration officials knew about a White House aide's link to the Secret Service prostitution scandal and covered it up, according to a bombshell report that surfaced Wednesday night. Friends of Barack: Jonathan Dach (right) posed with then-Senator Barack Obama during a campaign staff 'family night' event in Springfield, Missouri on November 1, 2008. Also seen are Dach's father Leslie (2nd left), then a Wal-Mart lobbying executive, and his mother Mary Dickie (left) Jonathan Dach, the staffer implicated by the Washington Post, was never disciplined after an investigation found he had a prostitute in his hotel room during a...