In a rousing speech that drew an overflow crowd to the University of Vermont on Friday, Illinois Sen. Barack Obama endorsed Bernie Sanders for U.S. Senate and Peter Welch for the U.S. House, saying the country could use a "nice cool blast of the truth." The rising star of the Democrats said Americans were starting to pay attention to their federal government and are ready for a "call to action." He called Sanders and Welch "two outstanding progressive candidates" who could bring about change in Washington He also praised former Gov. Howard Dean, chairman of the Democratic National Committee, who...