Secretary of State Marco Rubio said Tuesday that El Salvador's offer to accept and jail violent American criminals raises clear legal issues but described it as very generous and said President Donald Trump would make a decision on whether to move forward with it. Rubio reached an unusual agreement with Salvadoran President Nayib Bukele a day earlier that the Central American country would accept US deportees of any nationality, including American citizens and legal residents who are imprisoned for violent crimes. There are obviously legalities involved. We have a Constitution, Rubio said at a news conference Tuesday in San Jose with Costa Rican President Rodrigo Chaves. But it's a very generous offer. No one's ever made an offer like that and to outsource, at a fraction of the cost, at least some of the most dangerous and violent criminals that we have in the United States. But obviously, the administration will have to make a decision. Rubio discussed immigration with Chaves a .