Forget paternity tests. It's too close to election for that. Like with people hoping that Hillary will be "charged" with something. The clock ran out on that.
It's all about appearances now. Clinton is a genocidalist who funds female genital mutilation, but hey, Trump said a bad word. Sheer appearances.
So, Danney Williams SAYS he's Bill Clinton's son, he LOOKS like Bill Clinton, and his mom said that Clinton was the only white man she had sex with back at that time. Case closed, in the court of public opinion. Trump needs to get him in front of the public, like he did with the rape victims. I think that using 2 minutes of the debate would be the way to go. Maybe invite him up onstage, stand next to him and say, "Come on, Hillary. Just walk over here and give your stepson a hug. It takes a village, sweetheart. Come on. Give him a hug."