The S&P 500 and the Dow Jones closed lower Friday after a lackluster August jobs report. Nonfarm payrolls increased by 235,000 in August - about half of the 750,000 estimate. Bob Doll, Chief Investment Officer at Crossmark Global Investments, joins Cheddar News' Closing Bell to discuss investor skittishness after the jobs report, as well as an outlook for the second half of the year as the COVID-19 Delta variant lingers.