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Ahead on the 12/20 Maddow show

A look at what's on Friday's show

Tonight's guests:

  • Kenji Yoshino, the Chief Justice Earl Warren Professor of Constitutional Law at NYU Law School
  • Sarah Clements, a senior at Newtown High School and founder of the Junior Newtown Action Alliance, a grassroots organization dedicated to changing America's culture of gun violence

And here's executive producer Bill Wolff with a preview:

A festive show

Dec. 21, 201303:48