Just as Richard Nixon will always be known for the missing 18 minutes on the Watergate tapes, now Donald Trump has his missing 18 days -- the 18 days between the time that acting attorney general Sally Yates told White House counsel Don McGahn that national security adviser Michael Flynn was compromised and the time that Flynn was finally fired by the president.
Whether this story is a steady drumbeat or drip is immaterial. It is the downfall of this president.