Didn't think you would.
Why should I care about old oics of Melania?
Do you honestly think Trump didn't know about them? Do you honestly think Melania is scandalized by them?
You imply this is some sort of leverage. It isn't. Those pictures have been widely available online for quite some time, I imagine. They were a professional photo shoot, not blurry Polaroids found in the back of a basement somewhere...
By contrast, I imagine Obama probably was scandalized by pictures of his mother circulating, and would have taken efforts to limit their traction if possible.