The Vermont primary is taking place on Super Tuesday, along with contests in nine additional states.
The Green Mountain State contest has 17 delegates up for grabs. While polling has been scarce in the New England battleground, former Massachusetts Gov. Mitt Romney is expected to come out on top in the race.
The AP reports on concern of potential mischief on primary day:
There's concern among some Vermont Republicans that Democrats may take a GOP ballot when voting in Tuesday's primary to try to cause mischief in the Republican presidential race.
Vermont's open primary means voters don't have to declare a party ahead of time and can go to the polls to choose either party ballot.
The AP also notes:
A new feature in this year's primary is that, under an amendment to the Vermont Constitution approved by voters in 2010, 17-year-olds will be able to vote for the first time, so long as they turn 18 on or before Nov. 6, the day of the general election.
Nine additional states will also hold primaries and caucuses on Tuesday, including: Alaska, Georgia, Idaho, Massachusetts, North Dakota, Ohio, Oklahoma, Tennessee and Virginia.
Check out the slideshow below for more on the Romney campaign.