Former Tucson, Ariz., City Council member Regina Romero (D) was elected the city's mayor on Tuesday, becoming the first woman and first Latina to hold the office.

Romero won roughly 55 percent of the vote, according to Tucson's ABC affiliate. Independent Ed Ackerley trailed Romero with around 39 percent, and Green Party candidate Mike Cease brought in 3 percent.

The former councilwoman beat out two other Democrats in the party's primary in August.

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Romero previously worked as the director of Latino engagement at the Center for Biological Diversity in Tucson.

While Tucson has long been seen as a stronghold for Democrats, Arizona has been more dominated by Republicans, though the state has been increasingly viewed as a battleground going into 2020.

Arizona Sen. Martha McSally Martha Elizabeth McSallyOn The Trail: Making sense of this week's polling tsunami The Hill's Campaign Report: Presidential polls tighten weeks out from Election Day Mark Kelly: Arizona Senate race winner should be sworn in 'promptly' MORE (R) is facing an uphill reelection bid in the state against retired astronaut Mark Kelly (D), who has outraised McSally three quarters in a row.

President Trump Donald John TrumpFederal prosecutor speaks out, says Barr 'has brought shame' on Justice Dept. Former Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick MORE could also face an uphill battle in the state.

A New York Times-Siena College poll released on Monday showed Trump trailing former Vice President Joe Biden Joe BidenFormer Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick Bloomberg rolls out M ad buy to boost Biden in Florida MORE and Sen. Elizabeth Warren Elizabeth WarrenOvernight Defense: Appeals court revives House lawsuit against military funding for border wall | Dems push for limits on transferring military gear to police | Lawmakers ask for IG probe into Pentagon's use of COVID-19 funds On The Money: Half of states deplete funds for Trump's 0 unemployment expansion | EU appealing ruling in Apple tax case | House Democrats include more aid for airlines in coronavirus package Warren, Khanna request IG investigation into Pentagon's use of coronavirus funds MORE (D-Mass.) in the state.