Stocks closed near session lows Thursday as investors digested Federal Reserve Chair Jerome Powell's comment about a potential 50 basis point rate hike at the central bank's May meeting. Powell's announcement also sent the 10-year and other yields higher, with the benchmark 10-year rate hitting its highest level since late 2018. Victor Zhang, CIO at American Century Investments, joins Closing Bell to discuss today's close, Powell's comments, the Fed's moves on inflation, and more.