AUGUSTA, Maine (AP) Collection and tabulation of ballots from Maine’s Democratic primary election have stretched into a second week in the state’s first test of ranked-choice voting.

Private couriers were still retrieving remaining ballots from 11 towns on Monday, while officials ran the rest through machines.

With ranked-choice voting, voters rank the candidate preferences from first to last on the ballot, and a candidate who collects a majority of the vote wins.

If there’s no majority, then losing candidates are eliminated and votes reallocated in additional rounds of tabulations.

It’ll come into play in the Democratic gubernatorial primary. It could be used in the Democratic 2nd Congressional District race if Rep. Jared Golden comes up short of a majority.

Election officials said they hope to make available unofficial June 12 primary results this week.