(CNN) - With one week to go until Election Day, a new survey in the high profile Senate battle in Massachusetts indicates that the Democratic challenger has the edge.
According to a Suffolk University/7 News poll released Tuesday, 53% of likely voters in the Bay State say they support Democratic nominee Elizabeth Warren, with 46% backing Republican Sen. Scott Brown.
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Warren's seven point advantage is just within the survey's sampling error. It's also an increase from the four-point 48%-44% edge she held over Brown in Suffolk's September poll.
The poll's release comes hours before what was supposed to be the fourth and final debate between the freshman senator and Warren, the Harvard University professor and former Obama administration official whose brainchild was the Consumer Financial Protection Bureau. Monday both candidates canceled their appearances in the debate, citing worsening storm conditions caused by Hurricane Sandy. The debate was supposed to be moderated by CNN Chief National Correspondent John King.
The Massachusetts contest is one of the priciest and most high profile Senate battles in the country. While a Boston Globe poll released Monday indicated the race was basically tied, some other recent surveys over the past few weeks gave Warren a single digit advantage.
According to the Suffolk University poll, 51% of likely Massachusetts voters say they view Warren favorably, with 36% saying the see her in an unfavorable way. Massachusetts voters appear split on Brown, with 45% viewing him favorably and 42% seeing him in a negative way.
The poll indicates that by a 51%-36% margin, voters see Warren as the candidate who better represents interests of the middle class, better represents the interests of Massachusetts (48%-38%) and is running the better campaign (43%-32%). But a plurality (46%-41%) see Brown as the candidate who would be a more independent senator.
"There is a difference between being an independent voice and being the voice of independents," said David Paleologos, director of the Suffolk University Political Research Center in Boston. "Brown still leads Warren among un-enrolled voters, but the margin has dropped below the 60 percent threshold, especially among women who are independents and in urban areas."
In January 2010, then state lawmaker Brown scored a big upset, winning a special election to serve the remaining two and a half years of the late Democratic Sen. Ted Kennedy's term. Brown won thanks to support from independent voters and thanks partially to the strong backing from local tea party groups.
Massachusetts is also the home state to Republican presidential nominee Mitt Romney, who served one term as Bay State governor last decade. But the state leans Democrat in presidential contests, and the Suffolk survey indicates President Barack Obama with a more than two to one lead over Romney (63%-31%).
The Suffolk University 7 News poll was conducted Oct. 25-28, with 600 likely voters in Massachusetts questioned by telephone. The survey's sampling error is plus or minus four percentage points.