Generally when there is a planned filibuster the Senators are not required to actually take the floor unless there are sixty votes to stop them, but Bernie Sanders took this seriously. He spoke on the Senate floor for over eight hours. At times the Senate chamber was empty but “Senate video servers had shut down after more than 12,000 people tried to tune in to his speech on their website.”
When Bill Clinton decided to campaign in favor of the deal, who would have guessed someone would wind up talking even longer than him.