As President Donald Trump assumes office today for the second time, we are reminded of the events that took place when he left office just four years ago.
With baseless claims of voter fraud, a storming of the US Capitol, and an impeachment, President Trump's final few months in office during his previous term amounted to what was arguably the most tumultuous presidential transition in history.
There have been several other US presidential transitions that would give President Trump a run for his money. Check out this gallery to find out more.