This has been one of the biggest social media debates of this year, especially after Mark Zuckerberg's hearing and being roasted by Alexandria Ocasio-Cortez. Twitter immediately took a stance on this by banning any political advertisements. This is a very strategic move on Jack Dorsey's end, as the amount of political spending twitter receives is miniscule when compared to that of Facebook's. This is what the employees of Twitter think.
This is the survey from employees at Twitter, Facebook and Google as to how they think it would impact the 2020 election, and if Facebook should also adapt the same policy as Twitter's
This was from an blog post by James Wagner