US markets today: Wall Street steady ahead of Nvidia results, Trump-Fed clash keeps investors cautious

US stock market showed mixed trends. Investors are waiting for Nvidia's quarterly results. These results are important for understanding the AI boom. The S&P 500 remained close to its record high. The Dow Jones Industrial Average saw a gain. Nasdaq Composite experienced a slight dip. Kohl's shares increased after positive quarterly results. Crude oil prices went up.