Lawmakers from both parties in the House and Senate have called for Congress to be briefed on the charges. On Monday, the White House brought in eight House Republicans to be briefed, while some Democrats were scheduled to go to the White House Tuesday morning.
Robert Hendriks was 25 when he and two other Marines, Staff Sgt. Christopher K.A. Slutman, 43, a New York City firefighter, and Sgt. Benjamin S. Hines, 31, of York, Penn., were killed when their armored vehicle struck a roadside bomb near Bagram Air Base, about 20 miles north of Kabul.
Cpl. Hendriks had signed with the Second Battalion, 25th Marines, a reserve infantry battalion based in Garden City, N.Y., right after high school.
It was his first deployment to Afghanistan, where he was serving with his brother, Joseph Hendriks, who escorted his body back to the United States.
During his 2016 campaign, Mr. Trump repeatedly promised to end the foreign entanglements that had engulfed previous administrations over two decades.
Indeed, his criticism of the war in Iraq during the campaign and his desire to greatly reduce the United States’ role abroad attracted many veterans to his campaign. He has moved to reduce the number of troops in Afghanistan. While still popular with veterans and members of the military, he has lost some support in recent months over his use of active-duty troops against largely peaceful protesters around the nation.
VoteVets, a liberal group, has teamed with Concerned Veterans for America, a conservative group aligned with Mr. Trump on many policy issues, to oppose overseas interventions and lobby members on Capitol Hill against a “forever war.”