After disgraced National Security Adviser Michael Flynn pleaded guilty to the FBI and agreed to cooperate with Robert Mueller's investigation, there's been much speculation that the special counsel is using the "Logan Act" as leverage in his dealing with potential witnesses.
Let's hope not. No one has ever been found guilty of violating it since Congress passed the law in 1799. But that fact, which is circulating widely in the media, is a distraction. Far more concerning is another fact about the Logan Act: It has been repeatedly used as a partisan cudgel to harass political opponents for more than two American centuries. If Mueller makes this obscure law the centerpiece of his case against the Trump administration, he runs the risk of inviting accusations, however unfounded, that he, too, is a partisan hack.
The idea behind the Logan Act is not without merit. It forbids Americans from unauthorized negotiations with foreign governments, especially those that seek to "defeat the measures of the United States" aimed at those same countries. In short, it protects the ability of the U.S. government to conduct foreign policy without interference from private citizens.
It originated in the late 1790s. After the U.S. signed a treaty with Great Britain, France retaliated by preying on American shipping. The resulting "Quasi-War" put France on a collision course with President John Adams and the Federalist Party. They had little love for the country after witnessing the bloody excesses of the French Revolution.
But the political opposition, led by Thomas Jefferson and the Democratic Republican Party, retained a strong affection for France. In 1798, Dr. George Logan of Philadelphia, a friend of Jefferson, traveled to Paris for talks with French officials aimed at defusing the conflict. This end run around Federalist foreign policy met with immediate condemnation.
Adams asked Congress to put an end to the "temerity and impertinence of individuals affecting to interfere in public affairs between France and the United States." Rep. Roger Griswold, a Federalist from Connecticut, happily complied, and Congress passed the Logan Act in 1799.
This same Congress also passed the odious Alien and Sedition Acts, which targeted Jefferson and his followers. And almost immediately, one legal scholar has observed, the statute "revealed its potential as a principle of political behavior, as a debating weapon against the opposition and as a threat against those out of power." But as a law actually used to prosecute rogue diplomats? Not so much.
In fact, the only person formally indicted under the Logan Act was an eccentric Kentucky farmer named Francis Flournoy, who advocated that his state secede and throw their lot with France. This was hardly a diplomatic overture, but after betraying French sympathies, Kentucky's U.S. Attorney, an Adams appointee and staunch Federalist, slapped him with an indictment under the Logan Act. The case never made it to trial.