Wall Street extended its gains to a ninth straight day, marking its longest winning streak since 2004 and reclaiming the ground it lost since President Donald Trump escalated his trade war in early April. Wall Street extended its gains to a ninth straight day, marking its longest winning streak since 2004 and reclaiming the ground it lost since President Donald Trump escalated his trade war in early April. The rally on Friday was spurred by a better-than-expected report on the job market and resurgent hope of a ratcheting down of the trade showdown with China. The S&P 500 climbed 1.5%….