FILE - Maine GOP Chair Dr. Demi Kouzounas speaks about efforts to repeal ranked choice voting at a news conference outside the State House, Monday, June 15, 2020, in Augusta, Maine. Demi is running for the U.S. Senate in Maine(AP Photo/Robert F. Bukaty, File)

A ballot drop box for voting in the election is shown in Portland, Maine, on Thursday, Oct. 31, 2024. (AP Photo/Patrick Whittle)

Halloween decorations and political signs for the election are displayed along the street Thursday, Oct. 31, 2024, in Portland, Maine. (AP Photo/Patrick Whittle)

Election signs are placed near an entrance to Payson Park, Thursday, Oct. 31, 2024 in Portland, Maine. (AP Photo/Patrick Whittle)

FILE — Sen. Angus King, I-Maine, speaks with reporters at the Senate subway on Capitol Hill, Tuesday, March 12, 2024, in Washington. (AP Photo/Mariam Zuhaib, File)

FILE - David Costello, Democratic candidate for the U.S. Senate from Maine, right, speaks with Grace Jameson, of Saco, Maine, left, on Main Street in Saco, Thursday, Oct. 3, 2024. (Gregory Rec/Portland Press Herald via AP, File)