Called: Johnson wins in WI Senate race

The Fox News Decision Desk can now project that Republican Senator Ron Johnson will defeat Democratic Lieutenant Governor Mandela Barnes.

Johnson has represented Wisconsin since 2011. With this win, he will serve a third term.

Johnson, one of the most vulnerable Senate incumbents up for re-election this cycle, was first elected to his seat in 2010 when he defeated Democratic Sen. Russ Feingold.