Steel and Aluminum Stocks Surge After Tariff Announcement

President Trump announced Friday that steel and aluminum tariffs will double from 25% to 50%, calling the move a cornerstone of his "America First" agenda to revive U.S. manufacturing. The tariffs, set to take effect Wednesday, sparked a sharp rally in U.S. metal stocks in premarket trading as investors bet on stronger domestic production and profits. Trump visited a U.S. Steel plant near Pittsburgh at the end of last week to promote a pending partnership with Japan's Nippon Steel, describing the deal as a "planned investment" that would keep the…