Editor's note: Every Sunday after the newest episode of "Mad Men," lawyer and Supreme Court advocate Walter Dellinger will host an online dialogue about the show. The participants include Columbia University history professor Alan Brinkley, Stanford Law Professor Pam Karlan, Columbia theater and television professor Evangeline Morphos, and Georgetown Law professor Pam Harris . They will post thoughts after each episode ends at 11 p.m or sometime the next day. Readers are invited to join in with their thoughts in the comments section.

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