Gold tops $3,500 an ounce as Trump attack on Fed shakes confidence in U.S.
1. Gold prices rebounded from a recent low amid global trade war concerns. 2. Trump's pressure on the Fed raised gold's attractiveness as a safe haven. 3. Gold futures hit a record high, reflecting a 31% increase this year. 4. Central banks are increasing gold reserves, supporting its price rally. 5. UBS analysts predict further upside potential for gold amidst uncertainties.