Premarket: Wall Street futures down as Trump's tariffs stay put after latest court ruling

Wall Street futures slipped on Friday, as investors took stock of an appeals court decision to undo a prior ruling that had blocked most of U.S. President Donald Trump's tariffs, heading into the last trading day of a solid month for equities. The S&P 500 and the Nasdaq are on pace for their best monthly showing since November 2023, while the Dow is also set for a near 4% monthly advance. Stocks have seen immense volatility this month on Trump's on-and-off tariff moves, though the S&P 500 has rebounded from its April low and now sits about 4% lower from…