Indices closed in the red zone on Tuesday. Boeing, DowDuPont, and Caterpillar led decliners on the Dow. Stocks slipped amid continuing trade tensions. On another note, housing starts rose 5% in May to an annual pace of 1.35 million, exceeding estimates of 1.31 million. Looking ahead, earnings reports are due after the closing bell from FedEx, Oracle, and La-Z-Boy.