In the second poll released this week, Republican Scott Brown has a two-point lead over Democrat Elizabeth Warren in the Massachusetts Senate race. A new poll from Kimball Political Consulting, a firm based in Massachusetts affiliated with the GOP, finds 49 percent support Brown while 47 percent support Warren. A Boston Globe poll released on Monday also showed a two-point lead for Brown, 45 percent to 43 percent.

But most of the last several polls have shown Warren with the lead, and the Real Clear Politics poll average for the Massachusetts Senate race has the Democrat with a 4.5-point lead.

Last month, the Kimball poll showed a 2.5-point lead for Warren, 48 percent to 45.5 percent.

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