A second poll is showing Republican US Senator Scott Brown leading Democrat Elizabeth Warren by 9 to 10 points, a sign of potential concern for Warren after months of polling showed a closer race. The poll of 456 voters, conducted by Opinion Dynamics of Cambridge, shows Brown leading 52 percent to 42 percent in a theoretical match-up. Another 1 percent of voters said they were leaning toward Warren.
Unlimited access to BostonGlobe.com for only 99 cents for the first 4 weeks.Sign up
Are you a home delivery subscriber?
Get FREE access as part of your print subscriptionStart Here
Contact us for help