WASHINGTON — Nomination hearings for U.S. district judges tend to be dry affairs that offer little in the way of mass entertainment – in other words, they’re not typically the stuff of viral videos. But a clip of one of President Trump’s federal judicial nominees struggling to answer rudimentary questions about the law garnered well more than 1 million views in a matter of hours on Thursday night and stoked speculation that another of the president’s nominations might get derailed. Sen.