Chipmakers from Nvidia (NVDA) to Micron (MU) losing steam ahead of Tuesday's trading session are the biggest culprits behind premarket weakness. Tom White gauges the sustainability of these fluctuations on Wall Street as investors also grapple with the U.S.-Iran war. Home Depot (HD) earnings added to uncertainty in the housing market as the company addresses clear headwinds. Tom turns to a Wall Street Journal report which says AI spending has grown larger than many believe.