Larry Kudlow: The Chinese economy is crumbling

Monday marked the stock market's worst day of 2019. The S&P declined by 3%, and the Dow tumbled by more than 950 points at session lows. Larry Kudlow, director of the National Economic Council and a chief advisor to President Donald Trump, joins "Squawk on the Street" to discuss the trade tensions that led to the sell-off and what he's seeing in the economy.