Trump turns economic speech into attack on Democrats after Michigan results

LAS VEGAS (Reuters) -- US President Donald Trump on Wednesday turned a speech about the economy into an attack on progressive Democrats, arguing that their recent primary victories pose a potentially dangerous shift for the Democratic Party ahead of the November midterms. Trump's visit to Las Vegas was ‌part of a more aggressive push by the White House to shift attention toward the success of progressive candidates as voters remain unhappy with the president's handling of the economy and the Ira