"As a bipartisan, bicameral group of lawmakers, we respectfully ask you to sign into law Senate Joint Resolution 7, which invokes the War Powers Act of 1973 to end unauthorised US military participation in the Saudi-led coalition's armed conflict against Yemen's Houthi forces, initiated in 2015 by the Obama Administration," Congressman Ro Khanna, Senator Mike Lee and seven other lawmakers said in the letter.
In their letter on 5 April, the lawmakers said Trump's support for the measure could influence the Saudi-led coalition to end the conflict. The representatives also requested a meeting with Trump to further discuss the legislation as soon as possible.
Earlier in March, the White House in a notice warned that Trump would veto the resolution, arguing that the measure would negatively affect bilateral relations with countries in the region and seeks to override the president’s constitutional powers.
A UN human rights report released last year attributed most of the 16,000 civilian deaths to Saudi-led coalition airstrikes on targets such as hospitals, schools and open-air markets. UN experts also concluded that war crimes have been committed by all parties involved in the conflict.
The Saudi-led coalition has been carrying out airstrikes against the Houthis at Hadi's request since March 2015. The fighting in Yemen has resulted in one of the world's most acute humanitarian crises, with about 22 million people in need of some form of humanitarian assistance or protection, according to the United Nations.