During what appears to be an amicable divorce? With an age-appropriate woman? I'm not sure that rises to the level of "mistake," and certainly not to blackmailable acts.

AMI way overplayed their hand here, and we may yet find that they had gone all-in.

This isn't the 1950s. The conservative candidate in the last election is literally a serial philanderer. We're way past the point where the public at large is going to wring their hands about hum drum infidelity.