Joe Otterson TV ReporterAaron Eckhart has signed on to play President Gerald Ford in the upcoming Showtime anthology series “The First Lady.”Formerly known as “First Ladies,” the show is described as a reframing of American leadership, told through the lens of the women at the heart of the White House. Eckhart joins previously announced series stars Viola Davis and Michelle Pfeiffer, who will play Michelle Obama and Betty Ford respectively.