According to Deadline Hollywood, Bart will play Lawrence Mills, "a long-established D.C. speechwriter, who worked as the Graves administration’s director of communications where he crafted the President’s signature rhetoric even if, at times, it compromised his own lifestyle and ideology."
The show is described as such: "In 'Graves,' 20 years after his presidency, former President Richard Graves (Nolte) has the epiphany that his policies have damaged the country for decades. So, along with his young assistant, he goes on a Don Quixote-like journey to right his administration’s wrongs just as his wife, the former First Lady, decides to follow her own political ambitions."
"Graves" is set to premiere on Epix in 2016.