Published date: 21 April 2021 20:17 UTC | Last update: 21 sec ago The Biden administration's envoy for Yemen says he does not know the nature of the US military's involvement in a conflict he's trying to solve. Quizzed on the subject by Congress members at a hearing on Wednesday, Tim Lenderking said he was unaware of how President Joe Biden's pledge to end US support for Saudi offensive operations in Yemen had been enacted. "I'm not totally in that information loop, congressman, so I can't really speak to that," Lenderking said in response to a question by Democratic Representative Ted Lieu. "I do think that we need to make sure that Saudi Arabia is able to defend itself... but my focus is driving toward a ceasefire, so we can get out of this whole question of offensive and defensive weapons."