Since then, the Great Hall has served as a platform for historic addresses by American Presidents Grant, Cleveland, Taft, Theodore Roosevelt, Woodrow Wilson, and Bill Clinton. Clinton spoke on May 12, 1993 about reducing the federal deficit and again on May 23, 2006, as the Keynote Speaker at The Cooper Union's 147th Commencement along with Anna Deavere Smith. He appeared a third time on April 23, 2007, along with Senator Edward Kennedy, Henry Kissinger, Norman Mailer, and others, at the memorial service for historian Arthur M. Schlesinger, Jr. Most recently, Barack Obama delivered an economic policy speech at Cooper Union's Great Hall on April 22, 2010. On September 22, 2014, President of the Palestinian National Authority Mahmoud Abbas delivered his first formal speech in English, sponsored by Churches for Middle East Peace, calling for peace with Israel that would include a new timetable for a two-state solution.