The Paley Center for Media just opened an exhibition celebrating the 25th anniversary of “The West Wing,” the NBC series I wrote from 1999 to 2003. Some of the show’s story points have become outdated in the last quarter-century (the first five minutes of the first episode depended entirely on the audience being unfamiliar with the acronym POTUS), while others turned out to be — well, not prescient, but sadly coincidental.

Gunmen tried to shoot a character after an event with President Bartlet at the end of Season 1. And at the end of the second season, in an episode called “Two Cathedrals,” a serious illness that Bartlet had been concealing from the public had come to light, and the president, hobbled, faced the question of…