U.S. stocks declined, extending a turbulent streak of trading, after officials in Beijing and the White House exchanged fresh threats in a trade fight that many fear could crimp growth. The Dow

Stocks posted their biggest drop in months Monday, after officials in Beijing and the White House exchanged fresh threats in a trade fight that many fear could crimp growth.

Major indexes have made a sharp retreat from records as trade tensions between the world’s two biggest economies have ratcheted higher. Chinese officials said Monday that they would raise tariffs on roughly $60 billion worth of U.S. imports, following through on threats last week to hit back at the U.S. after its own increase in tariffs went into effect.

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