WASHINGTON — Responding to stinging criticism, President Donald Trump on Saturday abruptly reversed his plan to hold the next Group of Seven world leaders’ meeting at his Doral, Florida, golf resort next year. Trump announced a rare backtrack Saturday night after facing accusations that he was using the presidency to enrich himself by hosting the international summit at a private resort owned by his family. “Based on both Media & Democrat Crazed and Irrational Hostility, we will no longer consider Trump National Doral, Miami, as the Host Site for the G-7 in 2020,” Trump tweeted.