The most liberal marijuana law in the country may go up in smoke on Election Day.

Amid rising nationwide intolerance of drugs, Alaskan voters who have been able to legally possess small amounts of marijuana for 15 years appear ready to trade in their right to puff, a poll showed.Adults in Alaska can possess less than four ounces of marijuana legally in their homes or other private places, but an initiative on the Nov. 6 ballot would make possession of pot illegal anywhere.

If passed, the measure would make possession a misdemeanor punishable by up to 90 days in jail and a $1,000 fine.

The bill is the latest and most ambitious effort to erode the gains of the marijuana-reform movement of the 1970s, when 11 states relaxed pot penalties. It has attracted strong interest and big money from outside the state.