Nurse Laura Liffiton has travelled across the US for six months, helping in the fight against Covid.
The Latino vote both helped and hurt Joe Biden. This is how.
There was a moment of unity between three very different Trump and Biden supporters at a Trump rally in Arizona.
Trump supporters have been chanting conflicting messages in Michigan and Arizona. We look at why.
Former Nasa astronaut Mark Kelly has just been on stage in Tucson, Arizona, declaring a victory over Republican senator and former Air Force officer Martha McSally.
"The votes are counted, and we're going to be successful in this mission," he said on stage. Fox News projected his win.
"Tonight is not about celebrating," he added. "Tonight is about getting to work."
In a message to his daughters, he said that when they were young he used to go to work blasting off into space. But this time, it's to Washington DC where he'll be journeying into the great unknown.
Kelly is a political newcomer whose wife, Gabrielle Giffords, is a former congresswoman who was shot in the head while meeting with constituents in 2011. In the years that followed, the couple became well-known for their advocacy on gun control.
BBC North America reporter
While many of the in-play Sun Belt states – Florida, Georgia and Texas – appear to be disappointments for Joe Biden, Arizona is offering a ray of hope. The Democrat posted a substantial lead as early votes were quickly tabulated in the state, and he could be on his way to making it the first to switch sides from the 2016 results.
If Biden does prevail in the border state, his path to the presidency becomes less daunting.
Instead of having to win all three “blue wall” states (Michigan, Wisconsin and Pennsylvania) that Hillary Clinton lost, he would only have to flip two of them (plus winning an electoral college vote in Nebraska or all of Maine, if he loses Pennsylvania).
Donald Trump publicly feuded with Arizona's favourite son John McCain prior to the senator’s death in 2018, and his widow, Cindy McCain, endorsed Biden earlier this year.
Although the president held several rallies in Arizona in the past week, it appears the trends that have been moving the desert state toward the Democrats in recent years will deliver an important boost to Biden on what is shaping up to be a long night.
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New Jersey voters overwhelmingly turned out in support of legalised recreational cannabis, according to AP results.
The measure means the state is to become the 12th with legal weed. It passed with about 67% of the vote and with the support of all 21 counties in the state.
Minutes after New Jersey was called, Arizona was also projected to pass a measure legalising cannabis for adult use.
Voters in two other states will be deciding whether or not to legalise cannabis tonight. Montana and South Dakota still have to report their results.
Just ahead of the election, the US is seeing what could be the largest outbreak of the pandemic so far.
Clive Myrie has visited the Navajo Nation in Arizona where the death rate is the highest in the US.
The BBC's Clive Myrie goes to the crucial state of Arizona, where black votes could decide who wins.
Will Trump’s promise to build a wall along the Mexico border help or hinder his attempt to win four more years?
By Sophie Long
BBC News, Arizona
David Blaine rose over 24,000 feet (7,600 metres) over the Arizona desert for his latest stunt.
The former Republican senator said four more years of President Trump could "turn Texas blue".