People have been detained and referred for criminal prosecution, but USA rules state that children are not allowed to be held with their parents because they have not been charged with a crime. But Collins said Sunday morning that the numbers may be higher.
"I live in a border state".
Hurd also said that, in addition to being cruel and inhumane, the Trump administration's family separation policy does nothing to actually help American security.
An unnamed White House official also alluded to The Washington Post that Trump was using the enforcement to force lawmakers to pass new immigration laws. She compared it to the internment of Japanese-Americans during World War II, which she called "one of the most shameful episodes in USA history".
Media reports say while the adults are charged and detained, the children travelling with them are separated and classed as unaccompanied minors. "That's traumatising to the children who are innocent victims, and it is contrary to our values in this country".
Rep. Adam Schiff, a California Democrat, accused the administration of using the children as "mortar" to build Trump's border wall.
"This bill hardly fulfills President Trump's bold promise to fix immigration, and sure isn't a winning message for the GOP in the midterms", Hauman said.
"This is a fuse that has been lit", he said.
Named the 'Keep Families Together Act', the bill, if passed, would ban the separation of a child from a parent or guardian unless there was a risk of abuse or neglect stemming from the parent's custody of the child.
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Speaking to broadcaster NBC on Sunday, White House adviser Kellyanne Conway said "nobody likes" breaking up families and "seeing babies ripped from their mothers' arms".
In May, Attorney General Jeff Sessions announced a "zero tolerance" approach towards migrants and refugees who cross the United States southern border without documents, promising to prosecute those who did so.
"In no other context are we being asked to detain children with parents who are facing criminal charges".
Trump is scheduled to go to Capitol Hill on Tuesday at 5:30 pm to speak with House Republicans about immigration reform.
Mr Trump has made opposition to immigration a focal point of his presidency.
Trump had said in the interview that he wouldn't sign what was described as the "moderate" immigration bill, even though the version written by House leadership is based on his own priorities.
Democratic Senator Jeff Merkley of OR said: "Those kids inside who have been separated from their parents are already being traumatised".
Press." "It's an effort to extort a bill to their liking in the Congress. "I'd like to say it's un-American, but it's happening right now in America".
'Democrats and Republicans have spoken out against the practice.
"Ms Grisham went on to say that "[Melania] believes we need to be a country that follows all laws, but also a country that governs with heart", a line which supports the president's recent policy decision to criminally prosecute all adults attempting to cross illegally into the U.S. over the southern border.
Nielsen's comments come amid growing criticism over Attorney General Jeff Sessions' new "zero-tolerance" policy at the border to prosecute as many people as possible for illegally entering the US, even if it means tearing families apart.
Dimmit County Sheriff Marion Boyd said most of the occupants were believed to lack legal permission to be in the US.