Stock Market Today: Dow Futures Slide Another 1,000 Points; S&P 500, Nasdaq Tumble; Trump Tariffs Selloff Wipes $3.1 Trillion Off Markets; Apple, Tesla, More Movers; Jobs Report

Dow, S&P 500, and Nasdaq 100 futures are falling in premarket trading as the stock market reels from a massive selloff following President Donald Trump's shock tariffs announcement.