JUNEAU, Alaska — Levi Johnston won’t be mayor of Wasilla, Alaska, anytime soon. Johnston, who toyed with running as part of a reality show, isn’t an official candidate for the Oct. 4 election. His attorney, Rex Butler, says Johnston is too busy to run. Butler declined to give specifics but says Johnston has a book coming out next month and plans a tour. Johnston was thrust into the national spotlight in 2008, when Sarah Palin was running for vice president.