Stocks waver, bitcoin tumbles below $90,000 for first time since November

US stocks wavered on Tuesday, as President Donald Trump’s revived tariff threats and potential toughening of China curbs weighed on market optimism and the chances of interest-rate cuts. The tech-heavy Nasdaq Composite (^IXIC) fell around 0.3% on the heels of a tech-led selloff on Monday. The benchmark S&P 500 (^GSPC) hovered around the flatline, while the Dow Jones Industrial Average (^DJI) inched up about 0.4%. The biggest move in markets early Tuesday, however, came from the cryptocurrency markets, where the price of bitcoin (BTC-USD) tumbled below $90,000 for the first time since November. Bitcoin touched a low closer to $86,000…