This week’s episode comes from the Windy City, where Paul and Mary Kate take a break from politics to interview former Obama speechwriter David Litt and former U.S. Poet Laureate Robert Pinsky. For the 50th anniversary of his death this week, the four talk about what exactly made Martin Luther King Jr.’s oratory so unique. Then the three speechwriters and a poet give listeners tips on getting rid of writer’s block and finding inspiration; David talks about writing comedy at Funny or Die; and Robert tells the World’s Most Profound Joke.