Congress takes on Nvidia, White House as it pushes for chip export limit

Republican lawmakers are pushing to place limits on the ability of U.S. companies to sell advanced semiconductors to China — an effort that has run afoul of some key figures in the Trump administration. The effort also pits China hawks on the Hill against Nvidia CEO Jensen Huang, who has repeatedly made the pitch to lawmakers and government official that the more U.S. chips are used in China, the more U.S. companies will be a leader in the space. CNBC's Emily Wilkins explains.