Watch CNBC's full interview with Wharton's Jeremy Siegel, Veritas' Greg Branch and BNY Mellon's Alicia Levine

Wharton's Jeremy Siegel joins 'Closing Bell: Overtime' to discuss the market sell-off and whether the Fed is now doing too much to slow down the economy. With Veritas Financial's Greg Branch and BNY Mellon's Alicia Levine.