Sen Feinstein is demanding more information from Facebook and Twitter about Russian users on their sites

Sen Dianne Feinstein (D-CA) is demanding that Facebook and Twitter turn over reams of new data about Russian disinformation spread on their platforms during the 2016 US presidential election. Her requests — detailed in exhaustive letters to the two tech giants’ chief executives — are part of her broader probe into the Kremlin’s potential coordination with President Donald Trump’s campaign.

Specifically, Sen Feinstein seeks information about any Russian-connected user accounts, pages, organic content and ads that targeted their efforts at the United States. And with Twitter, in particular, she asks the company to share some direct messages sent and received by Julian Assange, the founder of WikiLeaks. In both cases, though, Sen Feinstein demands answers by Nov 6. That’s five days after Facebook and Twitter are set to send their senior legal advisers to Capitol Hill for back-to-back hearings before the House and Senate Intelligence Committees, which have spearheaded lawmakers’ Russia investigations.