David Wildstein speaks during a hearing at the Statehouse in Trenton, N.J., on Jan. 9, 2014. He pleaded guilty Friday to two counts of conspiracy in the "Bridgegate" case. Mel Evans/AP hide caption
New Jersey Gov. Chris Christie. Jeff Zelevansky/Getty Images hide caption
New Jersey Gov. Chris Christie leaves the Fort Lee, N.J., City Hall on Jan. 9. Louis Lanzano/AP hide caption
New Jersey Governor Chris Christie waves to guests as he attends the Super Bowl Hand-Off Ceremony in New York on Saturday. Eduardo Munoz/Reuters/Landov hide caption
David Wildstein, who says Gov. Christie knew about the lane closures as they were happening, speaks during a hearing at the Statehouse in Trenton earlier this month. Mel Evans/AP hide caption
New Jersey Gov. Chris Christie listens during a Jan. 9 news conference in which he denied any knowledge of lane closings on the George Washington Bridge when they occurred in September. Mel Evans/AP hide caption
New Jersey Gov. Chris Christie joins Lt. Gov. and Secretary of State Kim Guadagno (right) at a statewide prayer service in Newark marking the one-year anniversary of Superstorm Sandy, in October. Eric Thayer/AP hide caption
Democratic New Jersey Assemblymen (from left) Lou Greenwald, John S. Wisniewski and Vincent Prieto take questions at a news conference announcing a renewed investigation into the George Washington Bridge scandal. Mel Evans/AP hide caption