U.S. futures declined on July 7, with the Dow, S&P 500, and Nasdaq all in the red, reflecting investor caution ahead of July 9, when Trump plans to notify countries of new reciprocal tariffs. Tesla shares dropped ~6.7% pre-market after Elon Musk launched a U.S. political party, raising concerns about his divided focusthetimes.co.uk+3reuters.com+3reuters.com+3.