"Veep" executive producer and New York magazine writer-at-large Frank Rich talks with Peter Kafka about the 2016 election, why he underestimated Bernie Sanders and what future candidates can learn from Hillary Clinton's gaffes and Donald Trump's larger-than-life persona. Formerly a theater critic and political columnist for the New York Times, Rich explains why he left the Times in 2011 and how he got involved with HBO. Plus: Other than "Hamilton," how is Broadway doing?