Joe Biden and Republican Vice Presidential candidate Mike Pence start the day in New York City at the 9/11 memorial museum at Ground Zero.
Biden and President Donald Trump will both visit the Shanksville, Pennsylvania memorial site.
Kamala Harris is to speak at a 9/11 remembrance ceremony in Fairfax, Virginia.
Speaker of the House Nancy Pelosi will preside over a moment of silence at the US Capitol building. 
Here are the latest updates:
Friday, September 11
12 ET – A rare moment of bipartisan comity in politically polarised US

Democratic presidential candidate and former US Vice President Joe Biden and Vice President Mike Pence bump elbows during the 19th anniversary of the 9/11 attacks at the National September 11 Memorial & Museum in New York City, New York, U.S., September 11, 2020. [Amr Alfiky/Pool via Reuters]

11:30 ET – Trump administration seeks sweeping DNA collection from immigrants, US sponsors
The Trump administration on Friday proposed an expansion of its collection of DNA and biometric data from immigrants to include US citizen sponsors, the Reuters news agency reported.
The proposal vastly expands the biometric information that the Department of Homeland Security would collect beyond genetic material to include eye scans, voice prints, and palm prints, according to a notice in the Federal Register by the US Citizenship and Immigration Services.
The plan is the latest move by President Trump, who won office with his anti-immigrant rhetoric, to make good on his campaign promises to remake the US’s immigration system as he seeks re-election in November.
10:50 ET – Moment of silence observed by lawmakers at the US Capitol
Members of the US House of Representatives observed a moment of silence on the steps of the US Capitol at 8:46 am ET, the time the first hijacked airplane – American Airlines Flight 11 – crashed into the north tower of the World Trade Center.
House Speaker Nancy Pelosi carried a small bouquet of red roses and stood at social distance with other lawmakers, all wearing masks because of the coronavirus pandemic.
“Today, and every September 11, we come together as a nation to remember the fallen and gain inspiration from the resilience and patriotism that Americans showed at one of our darkest hours,” Pelosi said in a statement issued by her office.
10:45 ET – Google adjusting election-related searches
As tech giants grapple with the spread of political disinformation, Google announced they’re changing what shows up as suggestions in election-related searches.
“We expanded our autocomplete policies related to elections, and we will remove predictions that could be interpreted as claims for or against any candidate or political party,” Google’s Vice President of Search Pandu Nayak announced in a blog post.
10:25 ET – President Trump delivers memorial remarks at site of Flight 93 crash
President Donald Trump is speaking at the site of the crash for United Airlines Flight 93 near Shanksville, Pennsylvania. The president gave tribute to victims of the September 11 attacks.
“On that September morning when America was under attack, the battle turned in the skies above this field,” Trump said at a ceremony in which names of 40 passengers and crew killed in the crash were solemnly read out loud.
“They took a vote. And then they acted together. They charged the cockpit, they confronted pure evil and in their last act on this earth they save our capitol,” Trump said.

US President Donald Trump speaks during a ceremony at the Flight 93 National Memorial, remembering those killed when the hijacked passenger jet crashed into an open field on September 11, 2001, near Shanksville, Pennsylvania. [Jonathan Ernst/Reuters]

10:03 ET – Moment of silence observed at 9/11 Remembrance Ceremony for crash of Flight 93 in Shanksville, Pennsylvania
Participants in the national September 11 Remembrance Ceremony at Ground Zero in New York City observed a moment of silence at the approximate time of the crash of United Airlines Flight 93 in near Shanksville, Pennsylvania.
President Donald Trump is in Pennsylvania and preparing to speak at the site of the crash, now a national park, to honour the 40 passengers and crew who lost their lives. The plane crashed after four hijackers flying toward Washington, DC, were overcome by passengers who tried to regain control.
09:30 ET – Biden backs Trump’s push to draw down troops from Iraq and Afghanistan
Democratic presidential nominee Joe Biden said he supports President Donald Trump’s push to withdraw US troops from Iraq and Afghanistan, though not completely.
“These ‘forever wars’ have to end. I support drawing down the troops,” Biden told the newspaper Stars and Stripes. “But here’s the problem, we still have to worry about terrorism and [the Islamic State].” 
“I think we need special ops capacity to coordinate with our allies,” Biden said, adding that a maximum of “1,500 to 2,000” should remain.
08:53 ET – Second ceremony, attended by Mike and Karen Pence, taking place
A second independent ceremony not affiliated with the official ceremony takes place at Zuccotti Park near the 9/11 Memorial & Museum, an event organized by the Tunnel to Towers Foundation attended by Vice President Mike Pence and his wife, Karen Pence, and acting secretary of Homeland Security Chad Wolf.
Karen Pence read a passage from Ecclesiastes 3: “There is a time for everything, and a season for every activity under the heavens.”
The vice president followed her with a brief reading from the Bible. “For the families and loved ones and friends they left behind, I pray these ancient words will comfort your hearts, and ours”, he said before reciting Psalm 23, which begins with “The Lord is my shepherd”.
08:45 ET – Ground Zero ceremony begins
A military guard carries the flag that flew at Ground Zero around the site, Vice President Mike Pence stood not far from Joe and Jill Biden, who were next to Governor Andrew Cuomo, for the moment of silence at the site. Soon after, recordings of the names of the dead were played and a bell rang out for each one.
Everyone in the crowd appears to be masked, some are holding bouquets of flowers, many police, military and firefighters stand at attention.
08:10 ET – Joe Biden has landed at Newark Liberty Airport en route to Ground Zero
Before leaving for New York, Biden said he did not plan to make news, or hold any press conferences calling it “a solemn day”.
“I’m not going to talk about anything other than 9/11. We took all our advertising down. It’s a solemn day. That’s how we’re going to keep it.”
The 9/11 commemoration ceremony Biden and his wife will attend will be different from previous years with the names of those killed not being read out live, but pre-recorded because of coronavirus restrictions.
Participants are required to wear face coverings and practice social distancing on the Memorial plaza where the World Trade Center towers once stood.

Hello and welcome to Al Jazeera’s continuing coverage of the US elections. This is William Roberts.
Read all the updates from yesterday (September 10) here.
Read More