On 10th November 2020, Joe Biden won the US elections against former president Donald Trump.
Every US president has 100 days in office where they do things that bring change and prove they will be a good president.
In the first 100 days after being sworn into power on 14th January 2021, he promises to produce 100 million vaccines.
Furthermore, he promises to re open schools with gradual steps to keep children safe.
He also promises to make sure all Americans wear masks too.
Researchers are off to say his plans will work because they are achievable.
