The dollar edges lower, dented by tariff uncertainty and concerns about the Federal Reserve's independence. A new temporary global tariff of 10% went into effect on Tuesday after the Supreme Court overturned most of President Trump's sweeping tariffs last year. U.S. trade representative Jamieson Greer told the Fox Business Network's Mornings with Maria program Wednesday that the tariff rate for some countries will rise to 15% or higher. Meanwhile, Atlanta Fed President Raphael Bostic said Wednesday said the rift between the Fed and Trump has started to erode trust in the central bank's independence. The DXY dollar index falls 0.1% to 97.637.(renae.dyer@wsj.com)