Congress voting

U.S. equity index futures pointed to early gains and fresh record highs, following Asian markets higher, as European shares were mixed and oil was little changed, although it is unclear if anyone noticed with bitcoin stealing the spotlight, after futures of the cryptocurrency began trading on Cboe Global Markets.

The Pentagon has briefed President Trump on various military options the US can conduct in response to the poison gas attack in Syria that killed scores of civilians, and which Washington has blamed on the Syrian government, a U.S. official told Reuters.

Options include things like implementing a "no fly zone" or grounding aircraft used by Syrian President Bashar al-Assad's forces, an official quoted by Reuters said.