My husband watched this 80’s or early 90’s movie on TV, but it may have originally been a theater release.
The president and vice president are dead. The speaker
of the house is appointed president and must deal with a national security threat from Iran. My husband says this movie takes place entirely in a diner. The presidential motorcade arrives there and is prevented from leaving due to a fierce storm. In the end, the president orders a nuclear strike on Iran from the diner. Anybody know this movie?