Senate President Stan Rosenberg says he's planning to vote for a ballot question that would legalize the recreational use of marijuana in Massachusetts.

The Amherst Democrat said during an interview Thursday on WGBH-FM that he will vote for Question 4 and then try to make improvements to the measure.

Rosenberg is at odds with many other top officials on Beacon Hill including Republican Gov. Charlie Baker, Democratic Attorney General Maura Healey, Democratic House Speaker Robert DeLeo and Democratic Boston Mayor Marty Walsh who all oppose Question 4.

They say legalizing pot could lead people to harder drugs, including opioids.

Recent polls have pointed to growing support among voters for legalization.

A poll released Wednesday by WBUR-FM found 55 percent of voters back the ballot question, while 40 percent oppose it.

More From WBSM-AM/AM 1420