Nvidia said it would invest $5 billion in Intel, throwing its heft behind the struggling U.S. chipmaker just weeks after the White House engineered an extraordinary deal for the federal government to take a massive stake in the company. The stake will instantly make Nvidia one of Intel's largest shareholders, giving it roughly 4% of the company after new shares are issued to complete the deal. Nvidia's support represents a new opening for Intel after years of turnaround efforts failed to pay...