Stock market today: Dow, S&P 500, Nasdaq futures fall as Trump deadline for Iran deal nears

The impending Trump-issued deadline for a deal with Iran is causing market instability, leading to declines in Dow, S&P 500, and Nasdaq futures. This geopolitical uncertainty may trigger risk-off sentiment, affecting various assets. The deadline's outcome could significantly impact market direction, with a potential deal easing tensions and a failure to reach an agreement exacerbating volatility.