Sorry, Mr. President, special counsel Robert Mueller’s report destroyed the Logan Act’s continuing legal viability. It cannot be used to prosecute John Kerry.

The context here is President Trump’s suggestion on Thursday that former Secretary of State John Kerry be charged with violating the Logan Act. The act restricts private individuals from conducting foreign policy “without the authority” of the U.S. government. But Trump is upset over Kerry’s discussions with Iranian foreign minister Javad Zarif in relation to the 2015 Iran nuclear deal. Kerry supports that nuclear deal, but Trump strongly opposes it and has imposed significant sanctions on Iran in pursuit of a new deal.