“First, Section Three remains an enforceable part of the Constitution, not limited to the Civil War, and not effectively repealed by nineteenth century amnesty legislation. Second, Section Three is self-executing, operating as an immediate disqualification from office, without the need for additional action by Congress. It can and should be enforced by every official, state or federal, who judges qualifications.” https://papers.ssrn.com/sol3/papers.cfm?abstract_id=4532751