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U.S. equity futures drop 0.3 percent

March 26 (Reuters) - U.S. equity index futures dropped at the open on Sunday, after President Donald Trump's stunning political setback on Friday when Republican leaders pulled legislation to overhaul the U.S. healthcare system.

S&P 500 e-mini futures were down 0.3 percent, shortly after electronic trading resumed on Sunday evening.

(Reporting by Jessica Toonkel in New York; Editing by Peter Cooney)