Trump's biggest nightmare isn't Mueller

This week, we learned that the Southern District of New York -- my former office -- dropped an incendiary subpoena on President Donald Trump's inaugural committee seeking evidence of mail fraud, wire fraud, money laundering, conspiracy and illegal foreign contributions, and has requested interviews with Trump Organization executives. This is particularly bad news for Trump because, in many respects, the SDNY poses an even more potent threat than special counsel Robert Mueller.