The day’s events unveiled at least one piece of significant new information about the president’s conduct and set the stage for impeachment hearings to come.

The testimony released so far tells a story of the hijacking of the policy process and the conditioning of U.S. policy on political favors to Donald Trump.

Jed Rubenfeld is incorrect; the Good Samaritan provision of Section 230 does not turn internet platforms into First Amendment state actors.

The pivotal question, doctrinally, turns out to be what kind of First Amendment forums Google and Facebook operate.