U.S. senate candidate Dan Sullivan released his first ad on Thursday which will only appear online. Sullivan is running against Lt. Gov. Mead Treadwell and Joe Miller in the Republican primary. The ad serves as an introduction to Sullivan’s time as Alaska attorney general, former commissioner of DNR, and his service in the Marines. It doesn’t mention the other candidates. A series of radio ads produced by an Anchorage-based super-PAC earlier this month did hit Sen. Mark Begich, calling him “Malarkey Mark,” among other things.