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Ahead on the 12/12 Maddow show

Tonight's guest list and video preview.

Tonight's guests include:

Ryan Grim, Washington Bureau chief for the Huffington Post

Chris Hayes, host of MSNBC's "All In"

If you feel like rocking out, there's this. And if you're feeling like watching some awesome cable news tonight, here is executive producer Bill Wolff with a preview of tonight's show: