Poll: Brown's lead shrinks in Massachusetts Senate race

A Republican poll shows a drop of 5 percentage points in Sen. Scott Brown's lead in Massachusetts's Senate race following the Democratic convention in North Carolina, at which Democratic challenger Elizabeth Warren spoke — but the two remain locked in a statistical tie.

The poll, conducted by Kimball Political Consulting, gives Brown 46 percent support to Warren's 45 percent support, within the poll's 3.5 percent margin of error.

It was conducted this past weekend, from Sept. 7-9, just days after Warren gave a prime-time speech at the convention. Though her speech received mixed reviews, this new poll seems to indicate she might have gained an advantage from the high-profile event. Warren gained 2 percentage points' support since the last Kimball poll.

Brown did not speak at the Republican convention, in Tampa, Fla., due to what his campaign said was a scheduling conflict with his service as a National Guard officer, and his support dropped by 3 percentage points.

However, both candidates remain well-liked in the state, each topping 50 percent favorability.

In contrast to the Senate race, the presidential race seems like a done deal in Massachusetts — a full 55 percent of voters say they'll be supporting President Obama, compared to only 39 percent for Mitt Romney.

The poll was conducted among 756 likely voters statewide from Sept. 7-9, and has a margin of error of 3.5 percentage points.

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