People across the US have been organizing rallies against Trump's policies after a series of news pieces reported on the inhumane treatments of immigrants and the separation of families, intensifying political pressure on the government, sparking national outrage, and prompting Zeid Ra'ad al-Hussein, the U.N. High Commissioner for Human Rights, to call for ending the policy saying such regulations "punish children for their parents' actions".
President Trump speaks at the National Federation of Independent Businesses 75th anniversary celebration in Washington, D.C., on Tuesday.
And one of Trump's top allies in Congress said he would introduce stand-alone legislation to stop the family separations - in case a pair of House Republicans' broader immigration bills fail this week.
DHS has rejected claims that it has a blanket policy to separate families at the border, stating Monday that it will separate adults and minors under certain circumstances, including: when it's unable to determine the familial relationship, when it determines a child may be at risk with the parent or legal guardian or when a parent or legal guardian is referred for criminal prosecution.
The Baltimore County lawmaker said he was working with colleagues to "increase the number of family facilities at the border, so immigration officials can keep families together".
Trump had, in a series of tweets on Tuesday, argued that without a border, there could be no country, saying, "If you don't have borders, you don't have a country!".
Homeland Security Secretary Kirstjen Nielsen says children separated from their parents are well taken care of.
"We need you, those children need you -and I am talking directly to my Republican colleagues- we need you to stand up to President Donald Trump", he said. Here are some of the contradictory excuses offered by the Trump team for a policy that is being increasingly criticized by Democrats and Republicans alike.
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Expanded facilities could be key, as migrant children separated from their parents are now housed by a different department, Health and Human Services.
"When adults, with or without children, unlawfully enter this country, there must be a outcome for breaking our laws", DHS officials said. "Where is the outcry for the killings and crime being caused by gangs and thugs, including MS-13, coming into our country illegally?"
In an audio recording obtained by ProPublica investigative news site, which was widely circulated online and in US media, children said to be in a detention facility could be heard crying and calling for their parents.
"We can keep the families together while these cases are pending", he said.
In April, Trump's administration adopted a zero-tolerance policy.
Steven Wagner, a Trump appointee at HHS, said on Tuesday, "I don't know how many separated kids have been placed or reunited with parents".
The Trump administration also ended a program a year ago that was bringing every single one of the undocumented immigrants the program served to court. "These children did not make the choice to cross the border and shouldn't be punished for it", she said.
President Trump: "It is the Democrats' fault for being weak and ineffective with Boarder Security and Crime".