Follow all the latest U.S. market action for Tuesday here as stocks sit just shy of record highs despite turmoil in the Middle East and the Federal Reserve begins its two-day policy meeting.

S&P 500 futures are down 0.6%. Dow Jones Industrial Average futures are dipping 0.7%. Nasdaq 100 futures are retreating 0.6%. On Monday, the Dow Jones Industrial Average rose 317 points, or 0.75%, to ...