PORTLAND, Maine (AP) — Independent Sen. Angus King was ahead in his bid for a third term in Maine, but with much of the vote yet to be counted, it was too early to tell whether ranked voting would be needed to decide the four-way race. An extra round of tallies would be required under ranked choice voting if King fails to obtain a majority. That would mean a winner wouldn’t be formally declared for a week. King is challenged by Republican Demi Kouzounas, Democrat David Costello and another independent, Jason Cherry. The 80-year-old former governor would be Maine’s oldest senator if he completes a third term.