“DNA test. NOW. A certain blue dress should do.”
“Trump should take up Danney’s cause and insist Bill give him a paternity test ....”
No need for the blue dress or getting Bill’s DNA directly.
Bill Clinton had a half-brother, Leon Ritzenthaler, from his father’s first wife (well after they had divorced and unknown to Bill’s mother when Blythe married her). Ritzenthaler died in 2009, and is survived by a son, Charles, who lived in Paradise, California, at that time (see http://www.paradisepost.com/article/ZZ/20090114/NEWS/901149999 )
Clinton would fight and delay providing any sample, but Charles should carry at least the Y chromosome common to Clinton. If Danny and Charles have the same Y chromosome - it would make a very strong case.
If Clinton’s Blythe line and genealogy from his mother’s side was checked, Danny could find others willing to provide DNA samples to test for any relationships. With all the services now available (23 and me, ...), he could either find compelling evidence for the likelihood of Clinton being his father, or on the flip side at least find no apparent relationship and put the issue to rest.
But his Mom was a bit of A whore. Who knows who his bio dad was?