U.S. Sen. Maria Canwell, who was seeking her fourth term, won her re-election campaign Tuesday, capturing 59 percent of the vote after a third round of returns were released Thursday.

“This is one of the most amazing elections when the voters of our state and many across the country in one of the most divisive environments can step up and have a record turnout and help set a mid-course correction,” Cantwell said on election night.

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Republican challenger Susan Hutchison garnered 41 percent of the vote.

Hutchison said on election night she was proud of her campaign and was privileged to be part of the election process.

"I know you are deeply burdened by the things that we have seen happening, and the great thing about this campaign is that we forced my opponent to campaign," Hutchison said. "We forced her to debate. Remember after 18 years in office she didn’t feel like she needed to even stand for issues and explain herself in front of the voters in debates, and we shamed her into doing that."

Hutchison stepped down from her position as chair of the Washington state Republican Party earlier this year after six years at the helm. Previously she worked as a TV news anchor.

Hutchison didn’t file her candidacy until May, saying Seattle’s now-repealed head tax was a tipping point.

Cantwell raised over $11.6 million in her re-election campaign. Hutchison raised over $1.5 million, according to Federal Election Commission data.

In October, Cantwell and Hutchison faced off in two Senate debates in Tacoma and Spokane, sparring on health care, trade, environment, and gun policy.