IE 11 is not supported. For an optimal experience visit our site on another browser.

Ahead on the 3/18 Maddow show

Tonight's guests include:

Col. Lawrence Wilkerson (Ret.), former chief of staff to Secretary of State Colin Powell

John Brabender, senior strategist for the Rick Santorum 2012 campaign

Here's senior producer Cory Gnazzo with a preview before you can even even ask: