Philip Hamburger, a professor at Columbia, is the CEO of the New Civil Liberties Alliance, which represents most of the individual plaintiffs in Murthy v. Missouri.
Hamburger wrote the following post in response to a post at Volokh by Ilya Somin:
Is coercion the First Amendment's measure of the freedom of speech? In commenting on Murthy v. Missouri, Prof. Ilya Somin takes the view that "coercion is the appropriate standard." To this he merely adds that "veiled, but credible threats of retaliation by government officials qualify as such coercion."