The 100-day marker is an opportunity for the new administration to receive its performance report.

Members of our BBC Ask America panel shared their thoughts on President Biden's performance so far:

A soon-to-be college graduate, Josh voted for Joe Biden because he wanted an experienced politician in charge who is willing to compromise to get things done.

I'm very impressed. The biggest thing is the vaccine rollout. Here in California, if you want a vaccine, you can go out and get it.

I was very satisfied with the speed with which it was done logistically and the messaging from the federal government.

Right now, the momentum is going his way. Vaccines are getting through and people are getting their stimulus cheques, so I'm seeing a lot of hope.

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The 100-day marker is an opportunity for the new administration to receive its performance report.

Members of our BBC Ask America panel shared their thoughts on President Biden's performance so far:

Lesley is a self-employed financial advisor, Canadian immigrant and registered independent who voted for Joe Biden because she hoped he would get Covid under control and work with global allies.

I think he's accomplished a lot. He prioritised trying to get Covid under control and get people vaccinated.

They didn't have a whole lot of co-operation from the previous administration so I really do commend him on what he's been able to do in a short time.

The other thing is they were able to get additional stimulus money passed to address the people who really had needs.

Read more.

Tomorrow marks Biden's 100th day as President of the United States. So how's he doing compared to his predecessors?

Our US partner, CBS News, took a look at the numbers.

What was their approval rating on Day 100?

• Biden: 58%
• Trump: 41%
• Obama: 68%

How many executive orders had they signed?

• Biden: 41
• Trump: 30
• Obama: 19

How many bills?

• Biden: 11
• Trump: 29
• Obama: 14

How many interviews given?

• Biden: 6
• Trump: 35
• Obama: 46

How many formal news conferences?

• Biden: 2 (1 solo, 1 joint)
• Trump: 9 (1 solo, 8 joint)
• Obama: 12 (6 solo, 6 joint)

Since 1966, it's become a tradition for the opposition party to deliver a response to the president’s address to Congress. The rebuttal speech is televised minutes after the president finishes speaking.

This year, we'll be hearing from one of the most high-profile black Republicans, Senator Tim Scott.

Here's our profile of Scott, a potential 2024 White House contender.

But wait... there's more.

In an unusual move, the progressive wing of Biden’s own Democratic party also plans to deliver a response to his speech.

New York Democratic Congressman Jamaal Bowman will speak on behalf of the Working Families Party.

“As we approach the first hundred days of the president’s term, we should celebrate our victories, take stock of where we’ve fallen short, and be crystal clear about what it will take to truly build back better and deliver the recovery and the democracy our people deserve," Bowman said in a statement this week previewing his speech.

Here's a bit more from the Republican response from Senator Tim Scott, which will follow the president's address.

On schools:

"Locking vulnerable kids out of the classroom is locking adults out of their future," he will say. "Our public schools should have reopened months ago."

"Science has shown for months that schools are safe. But too often, powerful grown-ups set science aside. And kids like me were left behind.

"The clearest case for school choice in our lifetimes."

On the economy:

"Just before Covid, we had the most inclusive economy in my lifetime. The lowest unemployment ever recorded for African Americans, Hispanics, and Asian Americans. The lowest for women in nearly 70 years. Wages were growing faster for the bottom 25% than the top 25%.

"That happened because Republicans focused on expanding opportunity for all Americans.

"We fought the drug epidemic, rebuilt our military, and cut taxes for working families and single moms like mine.

"Our best future won’t come from Washington schemes or socialist dreams. It will come from you - the American people."

Image source, Getty Images

And now, following the release of the president's excerpts, here's a taste of the Republican rebuttal, from Senator Tim Scott of South Carolina.

"This should be a joyful springtime for our nation," he will say.

"This Administration inherited a tide that had already turned. The coronavirus is on the run!

"Thanks to Operation Warp Speed and the Trump Administration, our country is flooded with safe and effective vaccines. Thanks to our bipartisan work last year, job openings are rebounding.

"So why do we feel so divided and anxious? A nation with so much cause for hope should not feel so heavy-laden."

As US vice-president, Biden sat behind former President Barack Obama for all eight of his addresses to Congress, and attended many more such speeches during his 36 years as a senator for Delaware.

Twice, he participated in the Democratic rebuttal to President Ronald Reagan’s speeches.

Biden's witnessed more presidential addresses to Congress than almost anyone else, which is hardly surprising given that he's one of the country’s longest-serving political leaders.

But this will be his first time at the mic, as he delivers a speech that his aides say he has worked on for "weeks".

Perhaps "decades" would be more accurate?

A presidential address to a joint session of Congress normally brings out about 1,600 attendees, including Supreme Court justices, military leaders, lawmakers and their guests.

But Covid restrictions mean only about 200 people will view Biden’s speech from inside the chamber on Capitol Hill this year.

Only one Supreme Court judge and one military general will be in attendance, and no member of Biden's cabinet will be there.

Lawmakers are not permitted to bring guests, and some will be required to sit in the viewing balcony above the floor due to social distancing measures.

Here are some more excerpts from the president's speech:

On his jobs plan:

"Independent experts estimate the American Jobs Plan will add millions of jobs and trillions of dollars in economic growth for years to come. These are good-paying jobs that can’t be outsourced.

"The Americans Jobs Plan is a blue-collar blueprint to build America."And, it recognises something I’ve always said: Wall Street didn’t build this country. The middle class built this country. And unions built the middle class."

On democracy:

"We have to prove democracy still works. That our government still works - and can deliver for the people."In our first 100 days together, we have acted to restore the people’s faith in our democracy to deliver."We’re delivering real results people can see and feel in their own lives. Opening the doors of opportunity. Guaranteeing fairness and justice."

The White House has just released a few excerpts from Biden's speech tonight. Key lines have the president touting his accomplishments, with an implicit dig at his predecessor, Donald Trump.

"As I stand here tonight, we are just one day shy of the 100th day of my administration," Biden will say.

"One hundred days since I took the oath of office - lifted my hand off our family Bible - and inherited a nation in crisis. The worst pandemic in a century. The worst economic crisis since the Great Depression. The worst attack on our democracy since the Civil War.

"Now - after just 100 days - I can report to the nation: America is on the move again," the Democratic president will continue. "Turning peril into possibility. Crisis into opportunity. Set back into strength."More to come.

For the first time in US history, the two people seated behind the president as he delivers his address will be women.

Speaker of the House Nancy Pelosi, the top Democrat in Congress, and Vice-President Kamala Harris, who served as a California senator before Biden made her his running mate, will be on the dais looking over Biden’s shoulders.

Each woman will wear face masks, underscoring the pandemic that's expected to be a motif of the 46th president's remarks.

Image source, Getty Images

Franklin Delano Roosevelt, who served as president from 1933-45, is credited by scholars as having started the tradition of judging a US president by his first 100 days in office.

After taking control amid the Great Depression, FDR rapidly signed some 76 bills into law, including regulations on the stock market, policies leading to the New Deal, and the crowd-pleasing legalisation of beer sales.

In one of his radio addresses that came to be known as “fireside chats” he used the term “100 days” to describe his presidential running start.

Biden and his admirers have often invoked FDR, inviting parallels with the Democratic political colossus who shepherded the US out of the Great Depression and most of World War Two, but who was deplored by many conservatives as a big-government bogeyman.

Image source, Getty Images

The president is expected to outline his legislative priorities and tout his early accomplishments, including the signing of a $1.9tn (£1.4tn) economic stimulus package.

Early on in his speech, he will mention that both figures seated behind him on the dais, Speaker of the House Nancy Pelosi and Vice-President Kamala Harris, are women - a historical first in the US.

He will also deliver an update on the coronavirus pandemic, which has killed some 575,000 Americans. About 215m vaccine doses have been administered, far higher than Biden’s initial, modest goal of 100m doses in his first 100 days.

According to Centers for Disease Control and Prevention data released on Monday, nearly 29% of Americans are now fully vaccinated.

Biden will also lay out plans for an infrastructure reform package and a paid parental leave programme.

He may also speak about criminal justice reform after the Department of Justice announced investigations into the Minneapolis, Minnesota, and Louisville, Kentucky, police following the killings of George Floyd and Breonna Taylor.

Welcome to our live coverage of President Joe Biden's first speech to a joint session of Congress, on the eve of his 100th day in the White House.

During Wednesday night's primetime, State of the Union-style address, he'll promote a whopping package for families and education.

A rebuttal, delivered by South Carolina Republican Senator Tim Scott, will follow.

Ahead of the president's speech at 21:00 EDT / 02:00 BST, we'll bring you analysis, fact-checks and all the latest from Capitol Hill.