Under the Trump administration's new policy adopted earlier this year, many people are funneled into the criminal justice system when they cross the border illegally - and U.S. guidelines mandate at that point that children are separated from their parents.
"I did not like the sight or the feeling of families being separated".
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The executive order lays down new guidelines, requiring families to be kept together in the custody of the Department of Homeland Security.
But the reversal, which could face a legal battle, likely won't apply to the more than 2,300 children who have already been separated from their parents, the Department of Health and Human Services said.
The order said it is the administration's policy "to maintain family unity, including by detaining alien families together where appropriate and consistent with law and available resources".
Trump said that unnamed congressman and senators were hard at work on new legislation for a revised border protection policy. "What we have done today is we are keeping families together".
Pictures of children sleeping in fenced enclosures, alongside audio of them crying, have been released in recent days, sparking worldwide criticism.
He said he had been swayed by images of children who have been taken from parents while they were jailed and prosecuted for illegal border-crossing.
The ranking Democrats on the House Homeland Security and Judiciary committees issued a statement late Wednesday calling on the White House to further clarify its directive.
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Sir Paul then climbed into the passenger seat and the pair broke into a version of The Beatles' classic Drive My Car . The guys then ended up at a pub where Paul surprised the locals by performing several songs for an emotional crowd.
The family separations, highlighted by videos of youngsters detained in cages and an audiotape of wailing children, have sparked an outcry at home and strong condemnation overseas.
This certainly would go against Trump's 'America First' mantra if major United States businesses are turning against his harsher policies.
Where are the children taken? It would keep children detained together with their parents as they await criminal prosecution and deportation, potentially indefinitely.
On South Texas' border with Mexico, Manuel Padilla, chief of the U.S. Border Patrol's Rio Grande sector, told The Associated Press on Tuesday that the current situation for migrant children in the U.S.
Family members: Under US law, the children are meant to be released to stay with relatives or foster carers "without delay".
The order also calls for the justice department to request to modify the Flores agreement to allow children to be held longer, but it is unclear what will happen if the law does not change.
As quickly as Trump reversed course on the separation matter, speculation mounted over the fate of the advisers who crafted the policy: Attorney General Jeff Sessions and Miller, the 32-year-old policy aide who has drawn liberal ire for his uncompromising immigration stance.
Despite the president's order, Schey said he was concerned that several thousand children have already been separated from their parents "without the Trump administration having any effective procedures in place to reunite children with their parents, many of whom have already been deported".
Citing waves of immigration from around the world throughout American history, Obama added that "we're only here because this country welcomed them in, and taught them that to be an American is about something more than what we look like, how our last names sound, or the way we worship".
USA officials, speaking on condition of anonymity, said on Tuesday that in coming days North Korea would hand over a "sizeable number" of remains to United Nations Command in South Korea, and they would then be transferred to Hickam Air Force Base in Hawaii.