Investing.com - U.S. stock index futures higher Tuesday ahead of a spate of earnings reports. The Dow futures was up 0.21% at 7:15 ET. The DJI closed off 0.31% overnight. The S&P 500 futures added 0.16%. The tech-heavy Nasdaq 100 futures gained 0.04%. The dollar index remains hostage to concerns about the Trump administration's economic agenda. Focus returns to Republican efforts to amend the U.S. healthcare system. The two-day FOMC meeting kicks off, with policy expected to be kept on hold as market odds of another hike this year weaken. The FOMC may give further guidance on plans to gradually taper its bond holdings. CB consumer confidence data for July due out later in the session. Oil was firm as Saudi Arabia pledged to cut crude exports. API inventories ahead. (NASDAQ:Alphabet) was off 2% pre-market as its earnings report raised traffic cost concerns. (NYSE:DuPont) second-quarter earnings and revenues beat estimates. Other companies reporting today include (NYSE:AT&T), (NYSE:McDonald's) and (NYSE:{{247|Caterpillar