Last November, the state of Maine instituted Ranked Choice Voting statewide by popular referendum. Despite a recent court decision, wherein the court held that the method conflicted with the state's constitution, Ranked Choice Voting is still in effect in Maine. Huzzah!
My joy in reading the Salon article linked above is matched only by my joy that Salon published such an article. The stub on WABI's website made it look as though this were a binding decision that canceled the expressed will of the people. But Paul Rosenberg informs us on Salon that there was no court case, so there was no official judicial review. How could there actually be a case anyway? RCV hasn't been used yet, so it can't have harmed anyone yet, and there can be no plaintiff. Even if you believe that RCV brazenly violates the constitution, you can't really take it to court unless you can show where on the political doll RCV hurt you.
Nevertheless, the Maine legislature is already at work on efforts to codify RCV—or to overturn it—up to and including amending the state's constitution. These efforts may produce some odd coalitions within both houses, since electoral reform is (oddly enough) not a strictly partisan issue. Even Republicans there don't want another Paul LePage elected governor, or anyone taking office with less than 40% of the vote.