Rupee weakens to 85.86 per dollar as U.S. tariffs lift dollar; Sensex and Nifty drop amid global uncertainty.

• Rupee opens at 85.76 and falls to 85.86 on dollar strength driven by new U.S. tariff announcements.
• Fed may delay rate cuts due to inflation risks, further supporting the dollar and pressuring emerging currencies.
• Sensex drops 345 points, Nifty falls 121 points as markets react to Trump’s tariff escalation strategy.