The Federal Reserve chair, Jerome H. Powell, delivered a stark warning on Wednesday that the United States was experiencing an economic hit “without modern precedent,” one that could permanently damage the economy if Congress and the White House did not provide sufficient financial support to prevent a wave of bankruptcies and prolonged joblessness.
Mr. Powell’s blunt diagnosis was the latest indication that the trillions of dollars that policymakers have already funneled into the economy may not be enough to forestall lasting damage from a virus that has already shuttered businesses and thrown more than 20 million people out of work.
Yet the warning comes as discussions of additional rescue measures have run aground, with Democrats proposing sweeping new programs and Republicans voicing concerns over the swelling federal budget deficit, which is projected to hit $3.7 trillion this year. President Trump and his economic advisers have pressed the pause button on negotiations for additional spending, waiting to see how much the economy rebounds as states begin lifting restrictions on business activity.