Arizona’s presidential race remained too close to be called Monday night, but Joseph R. Biden Jr. held onto the lead in the state’s largest city. Phoenix and its suburbs swung to the left, allowing Mr Biden to win Arizona, even as other areas passed to President Trump.
Maricopa County comprises 60% of the state’s voters and is home to Phoenix. Mr. Trump narrowly won the county in 2016, and support for Republicans has crept in in the recent election. Voters backed Kyrsten Sinema, a Democrat, in the 2018 Senate race.
Margin of victory in Arizona counties since 2008
Each row shows the margins in a county over time
In Maricopa CountyMr. Biden won in most of the predominantly Hispanic ridings, although often with lower margins than Democrats saw in 2016.
Mr Biden also won in many younger neighborhoods.
The shift to the left in Maricopa County helped put Mr. Biden in the lead statewide. His seemingly strong support among the state’s Native Americans was also a boon.
Yet on Monday night, Mr Biden only led by about half a percentage point. A Democratic presidential candidate has not won Arizona since Bill Clinton in 1996 – and he was the first Democrat to win there since Harry S. Truman in 1948.