BOMBSHELL WORLD EXCLUSIVE! John Edwards has secretly undergone a DNA test - and it proves he's the father of his mistress' love child, The ENQUIRER has learned exclusively. Multiple sources confirm the bombshell development, and reveal lawyers for the disgraced presidential candidate are privately hammering out child support payments with his former lover Rielle Hunter. Edwards - who hotly denied he was the child's father when he publicly confessed his affair with Rielle on ABC's Nightline a year ago - has broken the news to his cancer-stricken wife Elizabeth, sources say. But The ENQUIRER has also learned that Rielle testified...