4th poll gives Warren the lead: WBUR poll (Warren +5)
September 19, 2012
A WBUR poll of 507 likely Massachusetts voters (PDFs topline, crosstabs) finds Democratic challenger Elizabeth Warren leading Republican incumbent U.S. Sen. Scott Brown, 45 percent to 40 percent. The survey has a 4.4 percent margin of error. ...
The poll finds an increasing number of likely voters 39 percent believe Warren will stand up for regular people when in the Senate, compared to just 30 percent when we polled back in February. Twenty-nine percent said the same thing of Brown, compared to 33 percent in February.
Warren is seen as the candidate who best understands the needs of middle-class families. Thirty-five percent of likely voters see her that way; 27 percent say the phrase best describes Brown. If the battle between Warren and Brown is one of issues rather than personality, Warren has the edge.
http://www.politico.com/blogs/burns-haberman/2012/09/fourth-poll-gives-warren-the-lead-135972.html
http://www.wbur.org/2012/09/19/brown-warren-poll