Nvidia stock jumping today, lifting the company’s market cap past $4 trillion for the first time ever. We ask one tech watcher how much higher it can go. Plus, the Wall Street Journal says it’s Kevin Hassett vs. Kevin Warsh in the fight to replace Jerome Powell as Fed Chair. We discuss who’s leading the race. And Amazon’s Prime Day sale pulling in $7.9 billion in the first 24 hours according to Adobe Analytics. One industry expert tells us how tariffs are impacting the big sales.