A panel on Supply Side Economics in Washington, September 12, included statistics on the superior performance of the American economy under President Clinton compared to his Republican successor. (The graph to the right, from Ettlinger & Irons, shows the first term of each administration. The growth gap during the second terms was even wider.) Former Treasury Secretary Larry Summers gave some statistics that included Democratic versus Republican presidents throughout the postwar period. As others have also pointed out, the Democratic record dominates to a surprising extent. (The event was jointly sponsored by the Center for American Progress and the Economic Policy Institute.)