It was the bombshell media story of the year when Fox News unceremoniously fired top-rated host Tucker Carlson in April. Making that Monday morning even nuttier was the fact that CNN’s Don Lemon was also shown the door after annoying virtually everyone—staff, executives, co-hosts, and even every woman over 40.Lemon’s firing was predictable, but Tucker’s came as a surprise, and speculation has abounded since on what caused the abrupt termination: was it part of the Dominion settlement? Was it related to a harassment suit (since dropped) by a former booker for the show? Was it because Fox Corp. Chairman Rupert...