At Pittsburgh summit, Trump turns AI evangelist in push for U.S. tech and energy dominance

Open this photo in gallery: U.S. President Donald Trump speaks during the Pennsylvania Energy and Innovation Summit, at Carnegie Mellon University in Pittsburgh, Pennsylvania, on Tuesday.Nathan Howard/Reuters U.S. President Donald Trump took a few hours off from adjusting tariff rates and ordering the deportation of migrants to become the world's least likely - but for an instant the most visible - artificial intelligence evangelist. In the unfamiliar environs of a top university (his campus visits have been largely confined to military academies and Christian colleges) and with an audience of six university presidents (an academic order that customarily regards him…