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Head Of New Hampshire GOP To Testify Before BridgeGate Committee (WATCH LIVE)

AP Photo / Julie Jacobson

Mowers was the Christie re-election campaign staffer who reached out last year to Fort Lee, N.J. Mayor Mark Sokolich, to ask if the Democratic mayor would endorse Christie. Sokolich did not endorse Christie, and many have wondered if that decision later motivated officials to close Fort Lee's access lanes to the George Washington Bridge in September, causing days of traffic jams there.

Mowers's testimony is scheduled to being at 10 a.m. ET. Watch live here (Update 11:00 a.m. ET: The committee decided Tuesday morning to go into executive session before hearing Mowers' testimony. The testimony will be carried live when it begins.):