By all accounts, Jared Kushner, the husband of President Trump's favorite daughter, has become an extraordinarily powerful man in the White House. To formally appoint Kushner a senior adviser, with a top security clearance, the president sought and received a Justice Department opinion declaring the White House exempt from federal anti-nepotism laws. That meant Kushner could have an official White House title to go along with his trusted-member-of-the-family influence. But Kushner wielded plenty of power before joining the White House staff. For one thing, he is thought to have been behind the purging of New Jersey Gov. Chris Christie from...
