Which Magnificent 7 stock is most impacted by Trump's tariffs? You’re reading a free article with opinions that may differ from The Motley Fool’s Premium Investing Services. Become a Motley Fool member today to get instant access to our top analyst recommendations, in-depth research, investing resources , and more. Learn More When the US market opened last night after President Trump unveiled his reciprocal tariffs, the reaction wasn't pretty. It was an especially brutal night for the magnificent 7. US stocks experienced their worst session since the pandemic. The S&P 500 Index (SP: .INX), which tracks the 500 largest listed…