Geopolitical tensions and corporate shifts defined the hour. Security concerns intensified following the arrest of an armed man at President Trump's California golf course, an event occurring amid high-stakes diplomatic efforts to reopen the Strait of Hormuz and ongoing negotiations to implement the administration's Hamas disarmament plan in Gaza. Economically, the U.S. is tightening control over critical defense supplies, implementing new export restrictions on tungsten waste and battery-derived 'black mass.' In the private sector, major strategic maneuvers persist: Uber pledged $10 billion to its robotaxi network, while Alphabet shares slid after AI scientist Jeff Dean announced his departure to launch a new startup. Broadly, corporate performance remains mixed, with companies like Sandisk, Honeywell, and Etsy facing guidance cuts or layoffs, while political developments include the Senate confirmation of CDC director Dr. Erica Schwartz and a primary win for progressive Senate candidate Abdul El-Sayed.