A Civil War-era treason case may be the secret weapon against Trump's Supreme Court case

President Donald Trump's administration had a disastrous day at the Supreme Court trying to argue in favor of the executive order rewriting the 14th Amendment and eviscerating birthright citizenship — but there was one compelling argument against his plan that has hardly featured in any of the legal discussion, Steven Lubet argued for Slate on Thursday, and it all comes back to one of America's most famous cases of political violence in 1859: the uprising of John Brown.

The entire argument...