"This is an issue, and if the Democrats are serious and a lot of the Republicans are serious they'll come together, they won't just talk about the Dreamers or the wall or catch and release, it's all of the above", Conway said.
"This policy resulted in immigrants missing their court dates and the federal government being unable to track individuals who entered the United States", Harris said. "Not on my watch".
Donald Trump said United States will not be a "refugee holding facility".
Melania Trump's Father's Day statement emphasises the fact that laws are always applied with discretion and that the U.S. can be both a law-abiding country and one that "governs with heart".
The number of separations has jumped since early May, when Attorney General Jeff Sessionsannounced that all migrants illegally crossing the United States border with Mexico would be arrested, regardless of whether the adults were seeking asylum.
"We will be seeing as we have been seeing there's going to be a shift in that they still may be children, but they were probably accompanied by their parents when they were first entering the USA", said Luis Aranga of Catholic Charities. "You see what's going on with child separation", he said, noting the weekend's news cycle.
Speaking at the same conference, Sessions echoed Nielsen's defense of the policy, and called on Congress to act.
In an earlier tweet, he said "Democrats should get together with their Republican counterparts and work something out on Border Security & Safety".
Despite that, presidential adviser Kellyanne Conway has rejected suggestions Mr Trump is using the children as leverage to force his opponents to enter negotiations on immigration and his long-promised border wall. "Has anyone been looking at the Crime taking place south of the border".
U.S. Sen. Ben Sasse (R) has issued a statement regarding the ongoing political debate about ICE agents separating children from their families. A host of outlets, including BuzzFeed, CNN, and the Washington Post say Trump is incorrect about that. Advocacy groups have said the problem arises from a politically-loaded zero-tolerance policy that is being enforced by the present administration. "It is immoral. And it breaks my heart", she wrote. "It is immoral. And it breaks my heart", Bush wrote, adding the images were "eerily reminiscent of the Japanese American internment camps of World War II, now considered to have been one of the most shameful episodes in USA history".
The signs of splintering GOP support are spreading.
"This was done by the President, not Democrats", Senate Democratic Leader Chuck Schumer said in a statement.
Now facing a new surge of illegal immigration, the Trump administration made a decision to turn to the criminal penalties to punish border-breakers.