"The committee takes this issue very seriously, and we appreciate that Facebook and Twitter are represented here this morning with an equivalent and appropriate measure of seriousness", Senator Burr of North Carolina said. "Congress is going to have to take action here".
Twitter isn't biased for or against any type of partisan but is working on ways to raise the level of debate on its platform, the company's CEO will tell a Senate hearing in Washington, D.C., today.
"As a bipartisan report from this committee said, Russian Federation used social media as part of, and I quote, a comprehensive and multi-faceted campaign to sow discord, undermine democratic institutions, and interfere in USA elections and those of our allies", she explained.
Dorsey will appear before the House Energy and Commerce Committee, addressing Republican concerns about how the social media platform polices content. In testimony released before that hearing, Dorsey denied that Twitter uses political ideology to make decisions. Google, however, risks having an empty chair at the hearing after cofounder Larry Page declined to appear.
Facebook's chief operating officer Sheryl Sandberg will also face questions, mainly surrounding what her company has done to crack down on abuse and other forms of content created to mislead.
Amazon becomes second USA company to be worth US$1 trillion
The Seattle-based company's stock has grown over 70 percent year-to-date, and has gained over 3,000 percent in the past decade. Apple took nearly 38 years as a public company to achieve the trillion dollar milestone, while Amazon got there in 21 years.
This will be the first time Sandberg has publicly faced significant questioning about Facebook's role in the 2016 election.
In prepared testimony released ahead of a House hearing Wednesday afternoon, Dorsey says his company does not use political ideology to make decisions, and aims to make as many voices heard as possible.
President Donald Trump used Twitter on July 26 to fault the website, without evidence, for using so-called shadow banning, or limiting the visibility of, prominent Republicans.
Sandberg, in her prepared remarks, detailed how Facebook was addressing the problem but reiterated that the company was slow to spot it.
"I'm deeply disappointed that Google - one of the most influential digital platforms in the world - chose not to send its own top corporate leadership to engage this committee", said Warner. Earlier this year, special counsel Robert Mueller indicted 13 Russians behind the social media effort.