Stocks got slammed for the second day in a row on Wednesday after weak payroll numbers stoked fears that President Trump’s trade wars were slowing down the US economy. The Dow Jones Industrial Average dropped by nearly 600 points, to a low of 25,974.12, after data from ADP showed that private US employers had hired fewer workers than expected. The Dow ended the day down 494.42 points, or 1.9 percent, to 26,078.62. The report, a precursor to the Labor Department’s more comprehensive jobs report due Friday, followed dismal numbers on US manufacturing Tuesday that showed activity was at its lowest...