A WBUR poll released today shows Republican Scott Brown defeating Democrat Elizabeth Warren by a 44 percent to 35 percent margin in a theoretical head-to-head match-up.
Warren, a former advisor to President Obama, has not declared her candidacy, but has formed an exploratory committee and yesterday delivered a keynote address at a Greater Boston Labor Council breakfast.
The WBUR poll of 500 residents, conducted by MassINC Polling Group, showed Brown winning against other potential Democratic candidates who have declared they are running in the primary -- Brown 45 percent vs. Bob Massie 29 percent; Brown 46 percent vs. Setti Warren 28 percent; and Brown 45 percent vs. Alan Khazei 30 percent.
The poll found that 54 percent of respondents viewed Brown favorably, compared with 25 percent who said they viewed him unfavorably. A Globe poll released Sunday had different results: 49 percent of respondents said they viewed Brown favorably, compared with 26 percent who said they viewed him unfavorably. Others said they were neutral or had no opinion.
The margin of error in the WBUR poll is plus or minus 4.4 percent.