U.S. stock futures took a hit Tuesday, extending the downward momentum from last week as markets digested fresh tariff threats from the administration. European trade tensions ramped up the pressure, sending shockwaves across global markets. All major indexes headed south in premarket trading, and the ripple effects are being felt everywhere. When traditional markets catch a cold, crypto markets often follow—so traders are keeping a close eye on how this unfolds. The uncertainty around trade policy tends to spike volatility across asset classes, making it a pivotal moment to watch.