FILE - In this March 9, 2012 file photo, then-Solicitor General Donald Verrilli speaks during a forum at the Georgetown University Law Center in Washington. Five lawyers will take turns at the Supreme Court lectern Tuesday for the highly anticipated and extended arguments over same-sex marriage. Among them are the Obama administration’s top lawyer at the high court, with more than two dozen arguments behind him, and two lawyers making their first appearance before the justices. (AP Photo/Haraz N. Ghanbari)