NASCAR Sprint Cup driver who was the 2004 Nextel Cup Series Champion and 2010 NASCAR Sprint All-Star Race winner. He joined Stewart-Haas Racing in 2013, then in 2015, he was suspended from NASCAR activities for allegations of domestic violence against his ex-girlfriend Patricia Driscoll.
He raced in go-carts as a child and was extremely successful in Dwarf racing as a teenager.
He was named Craftsman Truck Series Rookie of the Year in 2000.
His father Tom raced in NASCAR; his younger brother Kyle was the 2004 Busch Series Rookie of the Year. He was married to Eva Bryan from 2006 to 2011. He married Ashley Van Metre in 2017.
He edged out Jimmie Johnson for the Cup Series Championship in 2004.