Forty-eight percent of voters support the ballot measure to legalize possession and sale of small amounts of the drug., while 43 percent oppose the measure, known as Amendment 64. Support for legalized pot peaked at 51 percent in a survey taken last month, The Denver Post reported Monday.
Elderly and middle-aged voters are most against the measure, with those ages 35 to 49 opposed by a 4 percent margin. Young voters and those ages 50 to 64 approve of Amendment 64.
The law would allow for sale of marijuana at specially regulated stores, but has a provision allowing municipalities to ban such stores if they so choose.
The poll contacted 614 people on both land lines and cellphones. It has a margin of error of 4 percentage points.