Those who make the effort in this south-western US state will decide the fate of a controversial measure that would award a $US1 million ($A1.3 million) prize to one lucky resident, just for casting a ballot in an Arizona election.
The initiative is the brainchild of Mark Osterloh, an ophthalmologist and lawyer from Tucson, who came up with the proposition to try to boost dismal voter turnout in Arizona and across the country in recent elections.
During the last mid-term election -- when the US presidency is not up for grabs -- Arizona officials said about 56 per cent of the state's registered voters showed up at the polls. That same figure nationally was just 40 per cent.
"We've got a real problem that everybody recognises (and) we've got a real solution," Osterloh said. "
It's like being able to win a door prize at a church social. You walk into the polls, get what amounts to a ticket and you may win a really big prize. Who can resist something like that?"
Under the November 7 ballot proposal, a winner would be chosen at random every two years, with the proceeds coming from leftover cash from the Arizona Lottery.