The vice-president and ex-president both have vowed to block US Steel from merging with Japan’s NipponThe Monongahela River winds through the tight Mon Valley south of Pittsburgh, Pennsylvania, creating a main artery in the nation’s industrial heart, where the steel and coal industries have driven the region’s economy and shaped political landscapes since the late 19th century.In the weeks preceding the election, the region is once again playing an outsize role in determining the nation’s political future. A controversial Biden-Harris administration plan to kill Pittsburgh-based US Steel’s proposed sale to Japan’s Nippon Steel is viewed in part as an election-year strategy to shore up critical union support in a must-win swing state. Continue reading...