The 2020 US election campaigns smashed all records – with presidential and congressional candidates spending a total of almost $14bn – more than double the price tag for 2016.
This year the campaigns had to contend with the coronavirus pandemic, but what explains the huge increase?
BBC Reality Check breaks down some of the spending and who paid for it.
Motion graphics by Jacqueline Galvin
Narrated by Marianna Brady
Written and produced by Jake Horton and Soraya Auer
Please subscribe HERE http://bit.ly/1rbfUog
Video published on YouTube by BBC News.