Kari Lake, who backedĀ Donald Trump’s false claims of voter fraud in 2020, has lost her bid to become the next governor of Arizona.

The closely fought race with Democrat Katie Hobbs was one of the most significant in the US midterms as Arizona is a battleground state and is expected to play a pivotal role in the 2024 presidential election.

Ms Lake had vowed to ban the state’s mail-in voting, which conspiracy theorists falsely claim is vulnerable to fraud.

After the race was called, Ms Hobbs wrote on Twitter: “Democracy is worth the wait.”

Her defeated opponent expressed disdain for the election, tweeting: “Arizonans know BS when they see it.”

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Her defeat capped a successful week for Democrats, who defied Republicans’ hopes for a “red wave” in the midterms.

More on Arizona

Democrats retained control of the US Senate after keeping seats in the swing states of Arizona and Nevada, with Vice President Kamala Harris holding the tie-breaking vote.

The party could win outright majority control if Democratic Senator Raphael Warnock beats Republican challenger Herschel Walker in a Georgia runoff on 6 December.

Ms Lake, a former television news anchor, was one of a string of Trump-aligned Republican candidates who lost battleground state races.

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Voters in Pennsylvania, Michigan and Wisconsin also rejected election deniers in races for governor and other statewide election posts.

However, the Associated Press news agency has reported the Republicans are just one victory away from the 218 seats needed to take control of the House of Representatives that would allow them to hinder President Joe Biden‘s legislative agenda.