Russia's ex-President Medvedev responds after Trump calls him stupid over his nuclear threat
Former Russian President Dmitry Medvedev responded after US President Donald Trump called him "stupid" over his nuclear threat. "I moved a submarine...to the coast of Russia just to be careful," Trump said. "Trump once again brought up the subs...As the saying goes, it's hard to find a black cat in a dark room, especially if it's not there," Medvedev said.