Trump again threatens to send Americans to prisons in El Salvador

• It's not the first time Trump has threatened to send U.S. citizens to Salvadoran prisons.
• His comments Monday came while meeting with Bukele, who said returning a wrongly deported Maryland man would be "preposterous" despite a Supreme Court order to facilitate his return.
• "The homegrowns are next," Trump told Bukele in the Oval Office. "You gotta build about five more places. ... It's not big enough."

Driving the news: Trump's Justice Department admitted to a federal court that Kilmar Armando Abrego Garcia, a Salvadorian national, was wrongly deported back to El Salvador.

• Abrego Garcia is being held in a high-security prison for terrorists in El Salvador.
• The Trump administration has accused him of being a member of MS-13 even though he has not been charged with any gang-related crimes.
• Human rights observers have said the Salvadoran prison is overcrowded, and have documented instances of inhumane conditions and torture.
• On Sunday, Trump posted a video on Truth Social appearing to show detainees being aggressively handled at CECOT with the caption "We look forward to seeing President Bukele, of El Salvador, tomorrow in the White House!"

What they're saying: Stephen Miller, Trump's homeland security adviser, defended Abrego Garcia's deportation on Fox News, once again accusing him of being a member of MS-13.

• "This was the right person sent to the right place," Miller told Fox News.

Flashback: Online observers have noted that "transporting us beyond Seas to be tried for pretended offences" was one of the grievances the Founding Fathers listed in the Declaration of Independence.

Go deeper: What to know about the wartime authority Trump invoked for mass deportations

Editor's note: This story has been updated with additional context.