US President Joe Biden urged all Americans to come together as one nation as he was sworn in to office earlier today.
Speaking at his inauguration ceremony, he said he'll be a president for "all Americans", and called for an end to what he's called America's "uncivil war".
— Joe Biden (@JoeBiden) January 20, 2021
President Biden will issue a series of 15 executive orders within hours.
They'll overturn some of Donald Trump's decisions on issues like climate change and coronavirus.
Kamala Harris has also become the country's first-ever female vice president.
The time to move forward is now. pic.twitter.com/IrUUu0bxGO
— President Biden (@POTUS) January 20, 2021
There were no crowds at the event - because of coronavirus restrictions and security concerns - with 200-thousand flags set out to represent those who would normally attend.
Former Presidents Bill Clinton, George W Bush and Barack Obama were all there, but Donald Trump stayed away from the ceremony.
President Micheal D. Higgins has offered his congratulations to the new US President.
He said he hopes President Biden can visit Ireland "as soon as circumstances permit".
"There can be no greater honour than to be given the trust of one's fellow citizens to lead."
— President of Ireland (@PresidentIRL) January 20, 2021