Rep. Bob Faulkingham, R-Winter Harbor, introduced the legislation after the city of Portland's push to allow non-citizens to vote.
Faulkingham said his proposal clarifies what is in the Maine Constitution, which requires that one be a legal citizen of the U.S. to vote at all levels of Maine elections.
"This is something that was the intention all along, that only United States citizens should vote," Faulkingham said. "It just wasn't clear enough and this simply just sets this in stone, what was already the intention of the constitution."
Since the bill is a proposal to amend the state constitution, the final decision would rest with Maine voters.