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Ahead on the 10/21 Maddow show

Tonight's guests and video preview of tonight's show.

Tonight's guests include:

Dr. Ezekiel Emanuel, former White House health policy advisor and chair of Medical Ethics and Health Policy at University of Pennsylvania

Jeff Cook-McCormac, senior advisor to American Unity Fund, an advocacy group campaigning to build more Republican support for gay rights

Here is tonight's soundtrack! And here is executive producer Bill Wolff with a preview of tonight's show:

A lot is happening

Oct. 21, 201303:11