A new poll released Tuesday shows Elizabeth Warren leading Senator Scott Brown by 7 percentage points, one of the Democratic challenger's largest leads in any poll taken in recent months.

The poll, by Suffolk University/News 7, was released a day after a Boston Globe poll showed a much tighter race, with Brown leading by 2 percentage points. The Globe poll showed an exact tie when including responses from voters who did not express an initial preference but said they were leaning in one direction.

The Suffolk poll showed Warren leading with 53 percent of the vote compared with 46 percent for Brown. The poll of 600 likely Massachusetts voters, interviewed by phone, was taken Oct. 25 through 28 and had a margin of error of plus or minus 4 percentage points.