The political debate is on for John Stamos, Kristin Davis and Cybill Shepherd, the brand new Broadway stars of Gore Vidal’s The Best Man. On July 17, the stage and screen faves joined anchor Robin Roberts on the couch at Good Morning America to discuss their roles in the classic political drama. In The Best Man, Stamos stars as presidential hopeful Joseph Cantwell, Davis plays his wife, Mabel, and Shepherd stars as the opponent’s wife, Alice Russell, all of whom face off in a dirt-digging fight for the White House. Click below to hear Stamos sing a few bars of a Broadway song his co-star Angela Lansbury made famous, find out what hit ’80s comedy Davis has never seen (hint: Stamos starred in it!) and more.