From the Portland Daily Sun:
Portland this year embarks on an elected-mayor campaign that replaces a council-appointed mayor with one elected to an at-large seat. Through a city charter change, voters also will choose their next mayor through rank choice voting, where if any candidate falls short of a majority, then the “second choice” votes come into play in the tabulation.
MacMillan is working on the mayoral campaign for Portland’s David Marshall, an incumbent city councilor and Green Party member seeking the elected-mayor office. Another Maine Green Party member, former state legislator John Eder of Portland, announced in February his candidacy for the Mayor of Portland.
Green Party members said rank choice allows people to vote their conscience instead of feeling they’re casting a vote on a potential “spoiler” who could drain votes away from one of the two major parties.