On May 12, just three days after he fired James Comey as the FBI director, President Donald Trump tweeted this: "James Comey better hope that there are no 'tapes' of our conversations before he starts leaking to the press!"Like many of Trump's tweets, this one immediately came to dominate the political conversation. Did he actually have a secret recording system in the White House? If not, why say it? And, like many of Trump's tweets, it produced a chain reaction of events that backfired on Trump. The threat -- I guess that's the best way to describe what Trump did -- of the existence of recordings spurred Comey to pass along memos he had written detailing his conversations with Trump to a friend, with the express goal of them being leaked and, hopefully, triggering a special counsel to be appointed.