Twitter CEO Jack Dorsey will testify before the House Energy and Commerce Committee September 5 on "the company's algorithms and content monitoring," the committee's chairman, Rep. Greg Walden (R-OR), announced Friday.

Why it matters: Twitter is much smaller than Facebook, but it's President Trump's favorite social-media channel, and it faces criticism not only for its role in spreading Russian-promoted misinformation but also, from conservatives, for what they see as bias against them.