Republican businessman Donald Trump holds a commanding lead over the rest of the GOP hopefuls in a Massachusetts presidential primary poll released Thursday night.

The WBUR/MassINC poll of likely Republican voters shows Trump with 40 percent of the vote, including leaners.

Ohio Gov. John Kasich and Florida Sen. Marco Rubio both are at 19 percent.

Ted Cruz, a U.S. senator from Texas, comes in fourth in the poll, with 10 percent support, which was released on Thursday night. Presidential hopeful Ben Carson received 5 percent.

Seven percent picked somebody else or said they were undecided.

Via live telephone interviews with people who have landline and cell phone numbers, the poll surveyed 386 registered voters expected to vote in the primary.

The margin of error is plus or minus 4.9 percent. The full poll is available here.

Massachusetts voters, along with voters in 10 other states, go to the presidential primary polls on March 1.

WBUR Mass. GOP poll: Trump leads among all age groups and income groups: https://t.co/4c7kPUYfje (AP photo) pic.twitter.com/TNepRdV1jM — WBUR (@WBUR) February 26, 2016

Trump has drawn little support from elected Republicans who work on Beacon Hill. State Representative Geoff Diehl, R-Whitman, signed on as co-chair of Trump's Massachusetts campaign, becoming the first elected official to do so.

But others have looked elsewhere within the GOP field. The highest ranking Republican in the Massachusetts House, Brad Jones of North Reading, has endorsed Marco Rubio, according to the State House News Service. The wire service noted others went to Kasich.

The state's top Republican, Gov. Charlie Baker, has said he remains undecided about who gets his vote on Tuesday. He backed New Jersey Gov. Chris Christie, who dropped out after coming up short in the New Hampshire primary earlier this month.

But Baker, who has a 78 percent favorability rating in the WBUR/MassINC poll of likely Republican voters and 56 percent favorability rating among likely Democratic primary voters, has criticized Trump and Cruz, saying he views them as individuals unable to work with others across the aisle in Washington, D.C.

"I haven't decided who I'm going to vote for, but I think it's unlikely that I'll be voting for Donald Trump, yeah," Baker said.