https://www.cnet.com/news/heres-exactly-what-twitter-and-facebook-will-say-to-congress-tomorrow/

Twitter CEO Jack Dorsey and Facebook COO Sheryl Sandberg are gearing up to defend their respective companies before Congress on Wednesday. On Tuesday, the executives both released written testimonies as they prepare to address foreign influence and election security on the platforms. 

"Twitter does not use political ideology to make any decisions, whether related to ranking content on our service or how we enforce our rules," Dorsey said in his testimony. "We strive to enforce our rules impartially. We do not shadowban anyone based on political ideology. In fact, from a simple business perspective and to serve the public conversation, Twitter is incentivized to keep all voices on the platform."