In order for a court to order back child support, there has to be a court determination of paternity. He’s 30 now, the statute of limitations for establishment of paternity for purposes of child support has expired.
Collecting money may not be be main issue to Danney at this point. He MAY just want people to know that his Mama didn't lie about his paternity. If some Freeper knows how to post a screen print, here's a link to the 1998 DNA testing results (click on the FBI ANALYSIS OF SEMEN STAIN): www.faculty/projects/ftrials/clinton/lewinskydress.html