U.S. stocks finished lower on Tuesday as geopolitical jitters and U.S. economic concerns hung over investors ahead of the Federal Reserve's Jackson Hole symposium at the end of the week. The S&P 500 fell 0.8% to end around 2,901. The Dow Jones Industrial Average shed 173 points, or 0.7%, to end near 25,962, based on preliminary numbers. The Nasdaq Composite slipped 0.7% to finish around 7,949. Fears over Italy's political situation grew after Prime Minister Giuseppe Conte resigned following a spat with Matteo Salvini, leader of the League party. In the U.S., President Donald Trump lambasted the Federal Reserve for failing to slash interest rates. The 10-year Treasury note yield fell 4.6 basis points to 1.557%. Bond prices move in the opposite direction of yields. In company news, shares of Home Depot Inc. rose more than 4% after its earnings beat analysts' expectations.