So the crime is lying to the investigators like Clinton did. right?
With Ailes it would be trying to get someone else to lie in a situation similar to Clinton. I'm not up on the law, what the crime would be for him to have done that, etc, but that's what is being alleged. He wanted Regan to lie to fed. prosecutors, to hide the affair, because it would, by proxy, harm Guliani if it came out that Kerik was having an affair with Regan (using an apt. that was supposed to be used for ground zero workers!).
It'd be disappointing if Ailes ends up being that kind of typical high-powered scumbag. If she taped it, we'll know for sure. They are saying her taped call is Ailes' "blue dress." And all for Guiliani? Jeez.
“So the crime is lying to the investigators like Clinton did. right?”
Yes, but Ailes did not lie. Regan lied, now she wants to blame Ailes. You can’t force anyone to lie. It is your own personal choice.