Sara Gideon and Susan Collins Credit: BDN composite photo

PORTLAND, Maine — The most expensive political race in Maine history is drawing to a close Tuesday as voters choose whether to reelect Republican U.S. Sen. Susan Collins to a fifth term or to oust her in favor of Democratic House Speaker Sara Gideon.

Collins has touted herself as an experienced, bipartisan candidate who works to get things done for Maine, and is in line to chair the powerful Appropriations Committee if Republicans retain control of the U.S. Senate.

Gideon sought to drive home her message that Collins no longer represents the interest of Mainers after votes for Supreme Court Justice Brett Kavanaugh and for President Donald Trump’s tax cuts.

The Senate race was the most costly in Maine’s history with Gideon raising nearly $70 million, more than double Collins’ $27 million. All told, more than $120 million was spent by both candidates and outside groups on television advertising.

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But polls showed a tight contest, despite all of the money. Mainers on Tuesday were getting the final say on the race, which also includes two independents, educator Lisa Savage — who hoped to become the first Green senator by rejoining the party — and conservative businessman Max Linn.

A tight race could trigger provisions under Maine’s ranked choice voting.

The voting system lets people rank all candidates on the ballot. If no one wins a majority of first-round votes, then there are additional tabulations in which last-place finishers are eliminated and their second-place choices reallocated to the remaining field to assure a majority winner.

Democrats began targeting the popular Collins after her vote for Kavanaugh, and opponents crowdsourced money to unseat her. The Democratic Senatorial Campaign Committee gave an early endorsement to Gideon, who easily won her primary.

Changing demographics and partisan politics have altered the political landscape.

In the past, Collins easily won reelection with help from independents and even some Democratic voters in a state known for its fierce independence. But Democrats surged past independents in voter registrations this summer, becoming the state’s largest voting bloc.

Republicans cast Gideon as a wealthy liberal and a risky choice. Collins contended Gideon would be a Democratic partisan, not an independent voice, and touted her ability to get things done, pointing to the Paycheck Protection Program — for which she was lead author — as helping businesses during the coronavirus pandemic.

Gideon, meanwhile, said Collins’ seniority didn’t seem to give her much standing in her own party caucus. She vowed to press for a Medicare option for health care and environmental improvements while stopping short of the “Medicare For All” and Green New Deal proposals backed by progressives.

Collins is a native of Maine, raised in Caribou, where she picked potatoes as a kid, and touted her familiarity with Maine’s unique issues.

Gideon, originally from Rhode Island, moved to Freeport, Maine, 15 years ago. She was elected to the Legislature in 2012 after serving on the Freeport Town Council.

David Sharp, The Associated Press

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