President Trump on Tuesday vetoed a resolution that would have ended that US support for the Saudi-led military campaign in Yemen.
The move, anticipated, marks the second veto of Trump's presidency.
"This resolution is an unnecessary, pervasive attempt to weaken my constitutional authorities, the lives of American citizens and brave service members, both today and in the future," says Trump in a statement.
This measure passed the House on 247 to 175 voting earlier this month and approved by the Senate last month with support for seven Republicans.
This month's vote of the month marked for the first time to act in two chambers to use the same resolution of power of war to end US military cooperation in a foreign conflict.
Trump viewed Yemen's voting as a rebuke in his administration after the murder of Saudi journalist Jamal Khashoggi and urged some senators not to join it, Trump said. at the White House and parliamentarians.
He failed in Congress for some votes that seemed designed to remind him, as a decision to remove the penalties of the Russian oligarch Oleg Deripaska and the pushback against Trump's declaration of a national emergency to get rid of, secure funding for its long-promised border wall of US-Mexico.
The first bet on Trump, issued last month, was a congressional resolution that disagreed with his emergency declaration.
the Yemen resolution, the assistants said.
The decision to keep the Yemen war is confusing to some members of the administration Thinking that the president is often inclined to remove US troops from all conflict zones.
Trump continues to want to maintain a strong relationship with Saudi Arabia and does not share Congress's view of having to punish the kingdom, said the assistants.
Karoun Demirjian contributed this report.