I see Trump is keeping it classy and focused on real world problems, as always.
Does he even realize that Bill Clinton isn't running and that nobody cares about his possible illegitimate progeny? Plus the fact that the "son" is obviously part black is going to make it look like Trump is a bigot signaling to the other bigots out there. Another stupid move.
You seriously do not know seem to grasp how this "politics" stuff works. The portion of the electorate that cares about issues and is cognizant enough to understand them is a teeny tiny piece of the larger picture.
This tabloid crap works on the low information voters. Not only does this portray Clinton as unfaithful, it demonstrates he doesn't even take care of his own children.
It shows what a piece of crap Bill Clinton is, and by inference, what a piece of crap Hillary also must be.
It humiliates Bill, lends credibility to his accusers, and makes people laugh at him, and likewise laugh at Hillary as the cuckolded wife.
Laughing at them is detrimental to their efforts to be perceived as "leaders".