Other federal statutes may permit the prosecution of people who improperly dispose of presidential records, which are now considered government property. The one of most interest to Mr. Trump’s foes appears to be 18 U.S.C. Section 2071(b), which imposes fines and up to three years’ imprisonment on anyone having custody of records deposited in a “public office” who “willfully and unlawfully” mishandles these records. It provides that on conviction, the defendant “shall forfeit his office and be disqualified from holding any office under the United States.”

But the Constitution forbids that result with respect to the presidency. Even assuming the government could prove beyond a reasonable doubt that Mr. Trump deliberately mishandled government documents knowing this to be a violation of federal statute—a difficult task, since the PRA itself guarantees his access to his presidential records and former presidents are generally entitled to receive classified information—a court couldn’t disqualify him from serving as president.

The Constitution establishes the qualifications for election to the presidency: Only natural-born American citizens over 35 who have been U.S. residents for at least 14 years may serve. The Constitution also provides the only mechanism whereby an otherwise qualified person may be disqualified from becoming president: This penalty can be imposed (by a separate vote of the Senate) on someone who has been impeached and convicted for high crimes and misdemeanors. The proposed application of Section 2071(b) to the presidency would create an additional qualification—the absence of a conviction under that statute—for serving as president. Congress has no power to do that.