President Obama speaks in the Rose Garden of the White House in Washington on Wednesday, Aug. 31, 2011, to urge Congress to pass a federal highway bill. With the president are (from left) Transportation Secretary Ray LaHood, U.S. Chamber of Commerce Chief Operating Officer David Chavern and AFL-CIO President Richard L. Trumka. (AP Photo/Evan Vucci)

Photo by: Evan Vucci

President Obama speaks in the Rose Garden of the White House in Washington on Wednesday, Aug. 31, 2011, to urge Congress to pass a federal highway bill. With the president are (from left) Transportation Secretary Ray LaHood, U.S. Chamber of Commerce Chief Operating Officer David Chavern and AFL-CIO President Richard L. Trumka. (AP Photo/Evan Vucci)