Stocks extended Friday's losses Monday as investors still remain worried about rising interest rates and tighter monetary policy. Federal Reserve Chair Jerome Powell didn't mince words during the central bank's Jackson Hole symposium, saying there would be more 'pain' ahead as the central bank works to fight inflation. Art Hogan, Chief Market Strategist at B. Riley Wealth Management, joins Closing Bell to discuss today's price movement, whether and how long this volatility could continue, how much the Fed could continue to raise rates this year, and more.