his 24-hour filibuster
... that U.S. senator Strom Thurmond's aides set up a bucket for him to relieve himself during his 24-hour filibuster?
... that U.S. senator <a href="./Strom_Thurmond" id="mwAxs" rel="mw:WikiLink" title="Strom Thurmond">Strom Thurmond</a>'s aides set up a bucket for him to relieve himself during <b id="mwAxw"><a href="./Strom_Thurmond_filibuster_of_the_Civil_Rights_Act_of_1957" id="mwAx0" rel="mw:WikiLink" title="Strom Thurmond filibuster of the Civil Rights Act of 1957">his 24-hour filibuster</a></b>?