A group of U.S. senators introduced legislation Thursday that would require the Trump administration to share reports on steps they are taking to comply with court orders surrounding deportations to El Salvador.

New details deepen questions about the deportations, showing that El Salvador’s president pressed for assurances that the migrants were really members of the Tren de Aragua gang.

U.S. President Donald Trump on Wednesday said he has not spoken to El Salvador's president about returning a man mistakenly deported from Maryland, and the top U.S. diplomat refused to comment on reported contacts with El Salvadoran authorities.