Fed rate cut is the biggest market event today. Traders see a 92% chance of a 25 bps cut, per CME FedWatch. The decision comes at 2:00 p.m. ET. Jerome Powell speaks at 2:30 p.m. Stocks are on edge. The Dow is up 0.24%, the Nasdaq gains 0.44%. Treasury yields slip near 4.18%. A soft tone could lift markets. A tough one may spark a selloff. All eyes on Powell today.