Republican candidate Charlie Baker continues to put up a fight in Massachusetts’s gubernatorial race against Democratic state attorney general Martha Coakley, according to a new poll.

The latest weekly Boston Globe survey finds that Baker, a businessman and candidate for governor in 2010, is tied with Coakley at 42 percent among likely voters with less than three weeks before Election Day. Three independent candidates garner 8 percent of the vote, with 10 percent remaining undecided.

The poll has a 4.9 percent margin of error.

Baker and Coakley have swapped leads in the Boston Globe poll in recent weeks, as well as in other outlets’ polls, indicating the race will remain tight down to the wire. Baker is polling competitively despite only 13 percent of residents identifying as Republicans, compared with 35 percent who identify as Democrats, according to the survey. The rest considered themselves independents.

Coakley has struggled to win higher office before in the reliably Democratic state, losing to Republican Scott Brown in the Massachusetts special election in 2010 to replace Ted Kennedy.