US election 2024 live: Harris and Trump converge on rust belt as final day of campaigning begins

Election Day in the US is now often considered election week as each state follows its own rules and practices for counting ballots that can delay the results. There is also the possibility of legal challenges to counts that could cause delays.

In 2020, The Associated Press declared Joe Biden the winner on Saturday afternoon — four days after polls closed. But even then, The AP called North Carolina for Donald Trump 10 days after Election Day and Georgia for Biden 16 days later after hand recounts.

Four years earlier, the 2016 election was decided just hours after most polls closed. The Associated Press declared Trump the winner on election night at 2:29 a.m.

The tightness of the race this year makes it hard to predict when a winner could be declared – but North Carolina and Georgia could give an early indication as results in these swing states come in relatively quickly.

The Associated Press has pinpointed areas in swing states that could give us a clue on how the race will unfold:

In North Carolina, Harris’ margins in Wake and Mecklenburg counties, home to the state capital of Raleigh and the state’s largest city, Charlotte, respectively, will reveal how much Trump will need to squeeze out of the less-populated rural areas he has dominated.

In Pennsylvania, Harris needs heavy turnout in deep blue Philadelphia, but she’s also looking to boost the Democrats’ advantage in the arc of suburban counties to the north and west of the city.

She has campaigned aggressively in Bucks, Chester, Delaware and Montgomery counties, where Biden improved on Clinton’s 2016 winning margins. The Philadelphia metro area, including the four collar counties, accounts for 43 percent of Pennsylvania’s vote.

Elsewhere in the Blue Wall, Trump needs to blunt Democratic growth in Michigan’s key suburban counties outside of Detroit, especially Oakland County. He faces the same challenge in Wisconsin’s Waukesha County outside of Milwaukee.

The Guardian US has been averaging national and state polls to see how the two candidates are faring. Nationally, Kamala Harris has a one-point advantage, 48% to 47%, over Donald Trump, virtually identical to last week.

The election will be decided in the seven battleground states: Arizona, Georgia, Michigan, Nevada, North Carolina, Pennsylvania and Wisconsin. In these states, the polls are too close to call.

Harris has an 8% lead among those who have already voted, while Trump is ahead among those who say they are very likely to vote but have not yet done so. The poll, from the New York Times and Siena College, also found Harris was slightly ahead in Nevada, North Carolina and Wisconsin, with Trump up in Arizona and the other three too close to call.

Many Democrats are worried Trump is setting the stage for a series of legal challenges to poll results, in a sign the former president thinks Harris may win on election day tomorrow.

Hello and welcome to the Guardian’s continuing coverage of the 2024 US presidential election.

Kamala Harris and Donald Trump will begin a blitz of rallies and media appearances across the vital battleground states in the rust belt, as the final day of campaigning gets under way.

Harris is set to appear in the Pennsylvania cities of Allentown, Pittsburgh and Philadelphia, in a sign of how crucial the state will be to securing victory. Trump will start his day in North Carolina before making appearances in Pennsylvania and Michigan.

Opinion polls show the pair locked in a tight race. More than 78m Americans have already voted, according to the University of Florida’s Election Lab, approaching half the total 160 million votes cast in 2020, in which US voter turnout was the highest in more than a century.

Here are some of the latest developments:

• Kamala Harris pledged to “do everything in my power to end the war in Gaza” in her final rally in Michigan on Sunday, as she attempted to appeal to the state’s large Arab American and Muslim American population two days out from the election. Michigan is home to about 240,000 registered Muslim voters, a majority of whom voted for Joe Biden in 2020, helping him to a narrow victory over Donald Trump. But Arab Americans and Muslim Americans in the state have expressed dissatisfaction over the vice-president’s stance on Israel’s war on Gaza.

• Harris was making her fourth stop of the day in Michigan, having earlier spoken at a church in Detroit and stopped by a barber shop in Pontiac. Trump is holding his final rally of the campaign in Michigan on Monday night.

• Donald Trump said he should never have left the White House after his defeat in 2020 and joked darkly he would be fine with reporters getting shot. “We had the safest border in the history of our country the day that I left,” Trump said at a rally in Lititz, Pennsylvania. “I shouldn’t have left, I mean honestly, we did so well, we had such a great – ” he said before abruptly cutting himself off. In other comments, as he denigrated the media, he said: “To get to me, somebody would have to shoot through fake news, and I don’t mind that much, because, I don’t mind. I don’t mind.”

• Donald Trump again suggested he would give a role on health policy to Robert F Kennedy Jr at a rally in Macon, Georgia. “I told a great guy, RFK Jr., Bobby — I said, ‘Bobby, you work on women’s health, you work on health, you work on what we eat. You work on pesticides. You work on everything,” he said. Kennedy, a well known vaccine sceptic, on Saturday said that the former president would push to remove fluoride from drinking water on his first day in office if elected.

• Harris dodged a question on whether she voted for California’s Proposition 36, which would make it easier for prosecutors to send repeat shoplifters and drug users to jail or prison, after submitting her ballot. The measure would roll back provisions of Proposition 47, which downgraded low-level thefts and drug possession to misdemeanors.

• The Trump campaign claimed that recent polling by the New York Times and the Des Moines Register is designed to suppress Trump voter turnout by presenting a bleak picture of his re-election prospects. The memo claims that the Times’s polls have biased samples and overrepresent Democratic voters compared with actual voter registration and turnout trends.

• Trump also disputed a shock Iowa poll that found Kamala Harris leading the former president in the typically red state 47% to 44%. “No President has done more for farmers, and the Great State of Iowa, than Donald J. Trump,” Trump said in a post on the Truth Social network on Sunday morning. “In fact, it’s not even close! All polls, except for one heavily skewed toward the Democrats by a Trump hater who called it totally wrong the last time, have me up, by a lot”.