From TV Guide:
"The Al Smith Dinner"
"Donna joins the Santos campaign---hired by Lou Thornton, not Josh---in an episode dominated by abortion politics. An attack ad on Santos by a pro-life group puts Vinick in a bind: the furious Santos wants Vinick to repudiate it or "the gloves are off." But the pro-choice Vinick will offend the GOP's right wing if he does. Meanwhile, Will takes Toby's old job, and runs into a buzz saw over the NASA leak in the press briefings."
Major actors listed in the credits are John Spencer, Allison Janney, Richard Schiff, Bradley Whitford, Janel Moloney, Joshua Malina, Jimmy Smits, Alan Alda, Janeane Garofalo and Ron Silver.
To be aired October 30.