Founder and owner of Facebook, Mark Zuckerberg, announce that the platform will allow its users to turn off political ads.
"Everyone wants to see politicians held accountable for what they say - and I know many people want us to moderate and remove more of their content.
"For those of you who've already made up your minds and just want the election to be over, we hear you - so we're also introducing the ability to turn off seeing political ads.
"We'll still remind you to vote," he added.
Zuckerberg also announced that Facebook will take steps to boost voter registration, voter turnout, and marginalised voices ahead of the 2020 presidential election, and that the platform's aim is to help four million people register to vote.
"I just believe strongly that Facebook shouldn't be the arbiter of truth of everything that people say online," he said.
Dorsey responded in a tweet, saying: "We'll continue to point out incorrect or disputed information about elections globally.
And we will admit to and own any mistakes we make.
"This does not make us an 'arbiter of truth.'
"Our intention is to connect the dots of conflicting statements and show the information in dispute so people can judge for themselves.
"More transparency from us is critical so folks can clearly see the why behind our actions," he said.
Zuckerberg added that he believes the best way to hold politicians accountable is through voting.
"I believe we should trust voters to make judgments for themselves.
"That's why I think we should maintain as open a platform as possible, accompanied by ambitious efforts to boost voter participation."