President Truman tonight hailed a Democratic victory in New York as a portent of a new sweep for his party in the 1950 Congressional election. Speaking before the Women's National Democratic Dinner at the Mayflower Hotel in Washington, D. C., as their guest of honor, the Chief Executive told the group that he is "exceedingly happy" over today's election outcome. Bess Truman can be seen on the left. The woman in the center is unidentified. From: Mrs. Bertha R. Friant.