The 78-year-old veteran Democratic leader's Twitter account @PresElectBiden transformed into @POTUS after he took the oath of office at the West Front of the US Capitol as the 46th President of the United States in a historic but scaled down ceremony under the unprecedented security umbrella of thousands of security personnel.
The @POTUS account is the official account of the President of the United States and is separate from the @realDonaldTrump account that Trump uses to tweet.
Some users parted ways with @POTUS on the social network once it changed hands from former president Barack Obama to Trump. However, for reasons unexplained, they automatically re-followed the presidential account without their permission.
The @POTUS account, with its 13.2 million followers, moves from the Obama administration to the Trump administration. And, for now, Donald Trump intends to tweet as usual from both!
The portraits -- painted by African American artists -- will shake up the assumptions of visitors to US presidential galleries.
Here's the latest from the inauguration day of Donald Trump as the 45th President of the United States.