El Salvador President Nayib Bukele on Sunday proposed sending 252 Venezuelans deported from the U.S. and imprisoned in his country to Venezuela.

Salvadoran President Nayib Bukele proposed carrying out a prisoner swap with Venezuela on Sunday, suggesting he would exchange Venezuelan deportees from the United States his government has kept imprisoned for what he called “political prisoners” in Venezuela.

El Salvador’s president proposed on Sunday repatriating Venezuelan detainees sent to his country from the United States in exchange for the release of prisoners by Venezuela, including key figures in the Venezuelan opposition.

Venezuelan migrant Alessandro Paredes spoke to ABC News from a detention center in Texas after his deportation was blocked by the Supreme Court.

The case raises questions about the Trump administration's adherence to limits set by the Supreme Court. It carries the risk of a significant clash between the two coequal branches of government and potentially a full-blown constitutional crisis.