The initiative is being championed by the ACLU of Massachusetts, the Committee for Compassionate Medicine, and the Massachusetts Patient Advocacy Alliance.
The PPP survey found that Question 3 is winning broad support among Democrats (67%) and independents (55%), but also surprisingly high support (46%) among Republicans. Following the pattern in other states, support was stronger among men (61%) than women (55%) and stronger among people describing themselves as very liberal (77%), liberal (67%), and moderate (60%), than among those describing themselves as conservative (41%) or very conservative (37%).
Even if all the undecided voters (15%) joined those saying they will vote no, the measure would still win by 16 percentage points. Some drop-off in support is to be expected as election day nears and the opposition mobilizes, but it looks very likely that there will be at least 18 states to approve medical marijuana as of November.