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Facebook will be one of the platforms where you’ll be able to hear the company’s top lawyer get questioned by U.S. lawmakers about the social giant’s role with respect to Russian interference in the 2016 U.S. election.

C-SPAN is carrying this week’s three congressional committee hearings, with testimony from Facebook, Twitter and Google execs, on its official Facebook page, a rep for the network confirmed. That’s in addition to the C-SPAN3 channel, online C-SPAN.org, and on mobile via the C-SPAN Radio app.

The hearings will cover what part the internet companies played in influencing last year’s national U.S. election, which put Donald Trump in the White House. Facebook has disclosed that about 10 million U.S. users viewed some of the 3,000 targeted ads purchased by a group affiliated with the Russian government designed to sow political discord. Last month, Twitter said it had found about 200 accounts likely linked to state-sponsored Russian entities.

Witnesses scheduled to testify include Facebook general counsel Colin Stretch and Twitter acting general counsel Sean Edgett. For Google, Richard Salgado, director, law enforcement and information security, is scheduled to testify at the Tuesday hearing; Google SVP and general counsel Kent Walker is on deck for the other two.

And Silicon Valley companies are expected to remain in the congressional spotlight with more hearings being planned.

Here are the days and times of the hearings:

Tuesday, Oct. 31, at 2:30 p.m. ET: Crime and Terrorism Subcommittee (Chairman Lindsey Graham, R-S.C.) of Senate Judiciary Committee hearing on “Extremist Content and Russian Disinformation Online: Working with Tech to Find Solutions.”

Wednesday, Nov. 1, at 9:30 a.m. ET: Senate Select Intelligence Committee (Chairman Richard M. Burr, R-N.C.) hearing on social-media influence in the 2016 U.S. elections and what steps they are taking to mitigate foreign interference in the 2018 election cycle and beyond.

Wednesday, Nov. 1 at 2 p.m. ET: House Select Intelligence Committee (Chairman Devin Nunes, R-Calif.) hearing on “Russia Investigative Task Force: Social Media Companies.”