Mike Allen reports for Politico.“Worth just over $21 billion and now in the cross hairs of the Justice Department and the Securities and Exchange Commission, Adelson has made history: He is the first person to spend $70 million to sway a presidential election, and he plans to spend more — perhaps as much as $100 million — by Election Day. An estimated $20 million to $30 million of the giving went to groups that do not disclose their donors and had not been reported before.”