Trump said new talks to wind down the war in Iran will start Monday, after announcing he is holding off on new massive strikes he had threatened to unleash on the country.
Neither the U.S. nor Iran reported carrying out any attacks for three straight days - a respite after weeks of bombardments that led to fears of a return to all-out war.
The four American troops killed during renewed fighting between the U.S. and Iran in recent weeks are no longer listed as part of the Iran war death toll in the Pentagon's official casualty count.
Houthi attacks give Iran more leverage in potential negotiations
The vote tally was 216-214, with all Democrats opposed.