Since Donald Trump became the 45th president of the United States, the country has been characterized by an "America first" policy that has led to trade wars with both China and the EU.
In addition, the United States has also withdrawn from the Paris Agreement, the international climate agreement that entered into force in 2016.
According to Henrik Ekengren Oscarsson, professor of political science at the University of Gothenburg, a lot will change.
- One of Biden's election promises is that the United States will join the Paris Agreement again, he says.
Hear Henrik Ekengren Oscarsson list three things that change with Joe Biden as president in the video above.