The crisis-hardened CEO of JPMorgan is urging the administration to mollify markets by showing progress on trade deals.
The S&P 500 was left on the brink of a 20 percent drop, with Wall Street strategists continuing to issue bearish outlooks.
Prominent strategists say ongoing inflationary pressure hamstring's central bank's ability to support convulsing markets.
Economic slowdown risks could drive the added yield premium of corporate bonds over Treasuries to levels last seen during the Covid-19 pandemic, according to strategists.
Index spirals 20 percent below its record high before rebounding as uncertainty grips investors.
Selloff deepens on Friday after Fed chair issues warning.
The Federal Reserve chair said it continues to "wait for clarity" on Trump's tariff policies as their impact continues to reverberate.
Yields on the 10-year sank as bond investors price in a quarter-point rate cut by June, though it won't be an easy call for the Federal Reserve.
Dip-buying frenzy comes even as broader pessimistic sentiment persists among individual investors.
In initial after-hours trading, US stocks futures plunged more than 3% and oil slumped.
