Polls Disagree Over Brown, Warren

Two new polls show different results in the race between Senator Scott Brown and Democrat Elizabeth Warren.  One poll, conducted by the UMass Lowell Center for Public Opinion and the Boston Herald, showed Brown leading Warren, 49-to-48-percent.  The second survey, by the Western New England University Polling Institute and the Springfield Republican newspaper, puts Warren ahead by a 50-to 46-percent margin.