U.S. Senate Republicans on Thursday defeated a Democratic resolution calling for a review of human rights in El Salvador, focusing on conditions at a maximum-security prison holding people deported from the United States.

Senate Republicans have blocked a Democratic resolution to require more transparency from the Trump administration about deportations to El Salvador. The vote Thursday was the latest attempt by minority Democrats to force Senate votes disapproving of Trump administration policy.

Senate Republicans on Thursday stopped a measure that sought to obtain more information on the human rights practices at the prison in El Salvador where the Trump administration has deported migrants who are alleged gang members.