The dollar is on pace for its longest losing streak since the summer of 2020, pressured partly by stronger expectations for lower U.S. interest rates.The WSJ Dollar Index, which tracks the dollar against a basket of currencies, was down 0.1%. If it closes lower today, it would mark eight consecutive days of declines, its longest losing streak since June 2020, according to Dow Jones Market Data.One driver has been a stronger yen on rising Bank of Japan rate-hike expectations. Higher rates appeal to investors ...