http://usgovinfo.about.com/od/uscongress/tp/Five-Longest-Filibusters.htm
The record for the longest filibuster goes to U.S. Sen. Strom Thurmondof South Carolina, who spoke for 24 hours and 18 minutes against the Civil Rights Act of 1957, according to U.S. Senate records.
Ahh the party of choice.