Biden projected to win Arizona and its 11 electoral votes

• President-elect Joe Biden has won Arizona, as projected at 10:29 p.m. ET on Wednesday with more than 99% of the state's votes counted.
• Arizona is normally a Republican mainstay in presidential elections. The state voted for a Republican in every presidential election but one from 1972 to 2016.
• Arizona holds 11 electoral votes, and the state's delegation in Congress is split: six Democrats and five Republicans.
• See the live coverage and full results from the US presidential election.

As of 10:29 p.m. ET on Wednesday, President-elect Joe Biden won the state of Arizona and its 11 electoral votes, Decision Desk HQ and Insider projected.

Ninety-nine percent of the state's votes were counted, with more still to come in Maricopa County, home to more than 60% of Arizonans. Encompassing the Phoenix area, the county has trended toward Democrats in recent years.

There are major down-ballot races in the Senate and the House, including the 1st District, the 2nd District in the southeast, and the 6th District in Phoenix's northern suburbs.

The state has 11 electoral votes, and its congressional delegation is split, with six Democrats and five Republicans. Both chambers of the state legislature and the position of governor, however, are held by Republicans.

Arizona, and particularly Maricopa County, has seen significant demographic shifts in recent years that have helped move the state to the left. The state has seen an influx in new residents from the coasts, people with higher educational attainment, and Latinos, who are disproportionately younger and have been activated by years of the state GOP's attacks on immigration.

Polling has also indicated that Arizona's suburban women shifted leftward this cycle. This group has been crucial to Democratic victories across the US, both this year and in 2018. The state elected its first Democratic senator in decades — Sen. Kyrsten Sinema — in 2018.

Arizona political strategists say President Donald Trump's regular attacks on Sen. John McCain, the long-serving political moderate and Vietnam veteran who died in 2018, also hurt the president's popularity among establishment Republicans and independents in the state.

Arizona, which Trump won by just over 3 points in 2016, voted Republican in every presidential election but one from 1972 to 2016, the exception being President Bill Clinton in 1996.