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Ahead on the 4/10 Maddow show

Tonight's guests include:

Sen. Chris Murphy, (D) Connecticut, gave his first speech from the Senate floor today, and dedicated it to supporting gun reform measures in response to the Sandy Hook massacre

David Axelrod, former senior advisor to President Obama and MSNBC political analyst

Here's tonight's soundtrack.

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