A new poll shows Democrat Edward Markey winning the backing of 48 percent of voters compared with 41 percent for Republican Gabriel Gomez as the state's special U.S. Senate election heads into its final two weeks.

The Suffolk University poll released Monday also shows 10 percent of voters undecided.

The poll comes as Gomez and Markey prepare to face off in Springfield on Tuesday for their second televised debate, which is expected to include questions important to the western region of the state.

On Wednesday, President Obama is scheduled to attend a Markey rally in Boston.

The poll of 500 voters had a margin of error of plus or minus four percentage points and was conducted June 6 through June 9.

One percent declined to answer while less than one percent backed Twelve Visions Party candidate Richard Heos.

[Associated Press]