Warning: when you invite a flamboyant, retired lawyer in his 80s onto your show, you might wind up getting foul language on the air, along with wild conspiracy theories. Joe Scarborough learned that lesson the hard way today when he invited Martin London onto Morning Joe. London served as a lawyer to Spiro Agnew, and recently wrote a column suggesting that President Trump should consider resigning. At one point, London’s audio cut out, and when it came back, Scarborough said he hoped that his executive producer Alex Korson had hit the seven-second delay. We don’t know what London said —...