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Ahead on the 4/9/14 Maddow show

Tonight's guest list and video preview!

Tonight's guest include:

Assemblyman John Wisniewski, (D) New Jersey, co-chair of the investigation committee into the George Washington Bridge lane closures

Tom Vilsack, U.S. Secretary of Agriculture, member of President Obama’s cabinet

A little tune for Wednesday -- after the jump, a preview of tonight's show featuring executive producer Bill Wolff:

A lot to cover tonight

April 9, 201402:22