"We support our federal partners", Pentagon spokesman Army Lieutenant Colonel Jamie Davis said when asked about Trump's comments.
"I'm going to have to call up more military".
Operating under the same immigration laws as Barack Obama, Trump instituted a zero-tolerance policy aimed at detaining everyone who was caught crossing the border illegally and criminally prosecuting all the adults.
The border slowdowns have occurred after Trump late last month threatened to close the frontier if Mexico did not halt a surge in undocumented migrants reaching the United States. Family separation only happened under the Obama and Bush administrations if the guardians of the migrant minors were linked to crimes such as drug trafficking, according to ABC News.
An estimated 103,000 migrants were apprehended on the southern border for illegal entry into the United States for the month of March, according US Customs and Border Protection statistics released on Tuesday.
One official with knowledge of the matter said more officials may be on their way out, including the general counsel of DHS, John Mitnick, and U.S. Citizenship and Immigration Services (USCIS) Director Lee Francis Cissna.
Trump, who originally dubbed the measure the "Remain in Mexico" policy, unveiled it past year as a series of caravans with thousands of Central American migrants made their way to the US-Mexican border. Cameras captured another group Wednesday, waiting for border agents with no where to put them.
As Mueller release nears, White House renews attacks
Barr asked the Democratic congressman, who pointed out the resources the Justice Department is allotting to the case in Texas . Barr said he and Deputy Attorney General Rod Rosenstein decided that the evidence was insufficient to establish obstruction.
The possible reinstatement of large scale family separations was just one aspect of the upheaval evident at the Department of Homeland Security this week following the resignation of Kirstjen Nielsen. And I think they will pay a very big price in 2020 for all of the things, whether it is the fake witch hunt they start out, or whether it is a situation like this. "President Obama separated the children", Trump said.
At hearings across Capitol Hill, lawmakers grilled administration officials on whether the practice would resurface despite last year's outrage and evidence that separations were likely to cause lasting psychological effects on the children.
There was no immediate reaction from the Department of Homeland Security or Trump on the ruling, which can be appealed.
To date, more than 700 people, including families, have been returned to Tijuana, and almost 200 more to Mexicali, according to a Mexican immigration official. "They have all these awful laws that the Democrats won't change they will not change them". He said this "humanitarian" crisis is being ignored, but his own rhetoric and actions have actually served to exacerbate the problems.
The anonymous White House official went on to describe plans to revise "credible fear" screening for officials assessing asylum applications.
Some asylum-seekers affected by the program have told the immigration judge assigned to their cases how much more hard being in Mexico has made navigating the court system.
U.S. Customs and Border Protection Commissioner Kevin McAleenan is due to take Nielsen's place on a temporary basis, starting April 10.
Senior White House adviser Stephen Miller is said to be egging on the president to adopt an increasingly hardline stance on immigration. Jacky Rosen of Nevada, who invoked the troubled history of US treatment of asylum seekers.