Arizona Democrats Mobilize To Turn State Blue; Big Tech Hearings

Polls show Joe Biden ahead in Arizona, and if he wins, it would be the first time the state turned blue since the 1990s. We speak with a director of a grassroots group that has been working to register Democrats to vote. And, the Senate Commerce Committee is asking Google, Facebook and Twitter tough questions on Tuesday. Both Democrats and Republicans have expressed interest in revoking Section 230 of the Communications Decency Act of 1996 for very different reasons, Recode's Sara Morrison tells us.