Beginning in 1999, Moss portrayed the recurring role of Zoey Bartlet in the White House television drama "The West Wing", playing the daughter of President Josiah Bartlet (Martin Sheen) and First Lady Abbey Bartlet (Stockard Channing); she portrayed the character until the series finale in 2006. Moss' character became integral to the fourth season of the show; in a retrospective on the series "The Atlantic" noted: "Aaron Sorkin made the centerpiece of the explosive fourth-season finale where he basically engineered the most insane cliffhanger possible. It required Zoey to be a bit of a pain with her fancy French boyfriend, but Moss always made her relatable, even when the plot required otherwise."