DO you think Bill would stand by her, if DNA showed the CHelsea was NOT his child.
Despite his many, many flaws Bill is at least a warm person to people he cares about. Watch him and Chelsea together, or watch the way he treats the Bushes who have shown him just a tiny bit of kindness. He grabs on for all he is worth. But when Chelsea is around her mother she acts as if she is walking on eggs.
Honestly, if he wasn't so doggone scare, I bet you he would divorce her in a second...and would have years ago.