HARI SREENIVASAN:

In fact, officials with Twitter met behind closed doors today with staff on the House and Senate Intelligence Committees about Russian involvement in the election.

The New York Times reported that Russia may have used Twitter even more extensively to influence the election, including using automated message accounts, or bots, to spread false information and promote stories about e-mails by Democratic operatives.

It comes after Facebook recently announced it will give congressional investigators some 3,000 political ads purchased by Russian propaganda groups.

Facebook co-founder Mark Zuckerberg acknowledged the spread of false information on his platform, saying in a statement — quote — "After the election, I made a comment that I thought the idea that misinformation on Facebook changed the outcome of the election was a crazy idea. Calling that crazy was dismissive, and I regret it. This is too important an issue to be dismissive."

Congressman Adam Schiff is a Democrat from California and the ranking member of the House Intelligence Committee, which intends to have a hearing with tech companies soon.

Representative Schiff, anything you can say publicly about your conversation with Twitter today?