In 2000, David Boies and Ted Olson battled each other as lawyers representing opposite sides of the Supreme Court case Bush v. Gore.
Ten years later, the two lawyers have joined forces to challenge the federal constitutional validity of Proposition 8, the 2008 California ballot measure that outlawed same-sex marriage in the state.
Perry v. Schwarzenegger, as the case is named, is now pending in the U.S. District Court for the Northern District of California after closing arguments were given on June 16, 2010. The case is widely expected to eventually reach the Supreme Court.
On the first night of the Aspen Ideas Festival on July 5th, David Boies and Ted Olson sat down with moderator Jeffrey Rosen to discuss the case, their approach to arguing and cross-examining, and the beliefs and ideas that inspired them to disregard their political differences and unite in an effort to overturn Proposition 8.
We've selected out about six minutes of the discussion, but we encourage you to watch the full version at the Aspen Ideas Festival website.
Video produced by HuffPost's Ben Craw