Showtime's drama The Comey Rule airs September 27 and 28, and it's been called 'the most important drama of the year.' The Comey Rule is a riveting, behind-the-scenes account of the historical events surrounding the 2016 presidential election and the fallout from these events. The two-part series stars Jeff Daniels and Brendan Gleeson as former FBI Director James Comey and President Donald Trump.