Wall Street edges higher as earnings kick into high gear

Wall Street edged higher on Tuesday, led by technology and materials stocks, as the corporate earnings season kicked into high gear. Investors are also seeking more clarity on President Donald Trump's economic policies. "We are now in a phase where the policies need to come to fruition to justify the move we have seen in the post-election period," said Bill Northey, chief investment officer at Private Client Group of U.S. Bank.