WASHINGTON - DECEMBER 05: A crowd gathers for the annual lighting of the U.S. Capitol Christmas tree on the West Front of the capitol December 5, 2007 in Washington, DC. This year's tree, a 55-foot balsam fir from Vermont's Green Mountain National Forest, is decorated with strands of energy-efficient LED (Light Emitting Diodes) lights as part of the Captiol's commitment to save energy.