"Paul cited, as one of his reasons for stopping, the need to use the bathroom. Traditionally, the rules of the Senate do not permit a "talking" filibuster to be sustained if the Senator conducting the filibuster leaves the chamber. He expressed regret that he had not broken the late Sen. Strom Thurmond's record of over 24 hours, but declared that the effort--in which won support from Senators of both parties--had been worth the effort."
Hasn't he heard of one of these?