After the much-publicized break up, Johnston embarked on an acting and modelling career, posing for Playgirl. He also appeared several interviews, including The Tyra Banks Show and The Early show about this relationship with Bristol and her family. He has also written a book called Dear in the Headlights (2010) about the matter. Johnston wanted to run in the 2011 electron for Mayor of Wasilla, Alaska, but after it was revealed that he was the most unpopular person polled in his home state, Johnston withdrew from the election. Verne E. Rupright, the major at the time, advised Johnston “to get a high school diploma and keep the clothes on” This was in reference to his modelling career.