My Washington Post Op Ed on Impeachment and the First Amendment

This morning, the Washington Post published my op ed on impeachment and the First Amendment. Here is an excerpt:
When he stood on the Ellipse and told the crowd that “if you don’t fight like hell, you’re not going to have a country anymore,” and that “we’re going to walk down Pennsylvania Avenue … we’re going to the Capitol,” he may have been provocative and unwise. But, so goes the argument, he was not inciting imminent violence, according to the standards established by the Supreme Court….
The First Amendment protects private citizens against criminal and civil sanctions for a wide range of speech. But it doesn’t protect government officials against impeachment and conviction.
Under Supreme Court precedent, lower-level government employee