In 1798, the Kentucky State Legislature passed a resolution stating that acts of the national government beyond the scope of its constitutional powers were "unauthoritative, void, and of no force". An article from the American Heroes thread
Thomas Jefferson ImpeachedThe originator of the resolution was none other than the duplicitous Thomas Jefferson who was serving as both Vice President and also the leader of the Republican Opposition Party. It was of course an impossible conflict of loyalties that the Founding Fathers had not anticipated at Philadelphia.
But inevitably, there was a leak and he was called out by the Adams administration for violating the Alien and Sedition Act. The Republic watched in horror as the author of the Declaration of Independence was charged with impeachment. In his defence, Jefferson and his chief lieutenant James Madison sincerely believed that the Federalists had betrayed the American Revolution.
At a personal level, Adams of course was vindicated by the exposure. Throughout his tenture, he had been betrayed by malicious gossip and slander spread by his former friend. Despite that fact that he had withdrawn to Monticello and refused to participate in Cabinet, Adams said it was like Jefferson was in the next room the whole time.