Wall Street roared back from its worst day in 30 years Friday with a broad rally that sent the Dow Jones Industrial Average nearly 2,000 points higher — its biggest point gain ever — after President Donald Trump declared the coronavirus pandemic a national emergency. Fueled by a late-day surge while Trump was speaking, the Dow saw its largest percentage gain since 2008. The rally recouped many of the losses from a day earlier when the index experienced its worst slide since the Black Monday crash of 1987 and European indexes had one of the worst drops on record. The major indexes each closed with gains of more than 9%. The session capped a dizzying week on Wall Street, with wild swings driven largely by uncertainty over how much damage the coronavirus would cause to the global economy. By Thursday, the Dow had suffered two […]