"They thought it was recent pictures in order to make us look bad, but backfires", the president continued.
The government places such children in foster homes, but Steven Wagner, a senior official in the Department of Health and Human Services told a congressional committee last month the government was "unable to determine with certainty the whereabouts of 1,475" minors after attempting to contact their sponsors in the last three months of 2017.
Viral photos showing detainees at the U.S. -Mexico border in steel cages caused outrage online, with many social media users calling out U.S. President Donald Trump for unethical immigration practices.More news: Second 1000-Year Flood in Two Years Slams into Historic Maryland City
In this June 18, 2014 file photo, two female detainees sleep in a holding cell, as the children are separated by age group and gender, as hundreds of mostly Central American immigrant children are being processed and held at the U.S. Customs and Border Protection Nogales Placement Center in Nogales, Ariz.
"We don't want to separate families, but we don't want families to enter the border illegally", he said while speaking at Association of State Criminal Investigative Agencies' 2018 spring conference. However, it is true that new policy directs Justice Department to prosecute people crossing the border illegally.
However, former Obama speechwriter Jon Favreau, who pulled down his tweet linking the pictures to Trump still took a slam at the current administration with his correction.More news: Warriors book 4th consecutive NBA finals appearance with win over Rockets
Ms Trump tweeted the picture on Sunday, local time - less than a month after her father's administration said it would step up efforts to tighten immigration enforcements, in part by separating children of illegal immigrants from parents facing prosecution.
That's not true. There's no law mandating that parents must be separated from their children. But reports say family separations have been happening for months, and Attorney General Jeff Sessions announced a new "zero tolerance" policy in April, according to Reuters.More news: Canada to buy Kinder Morgan pipeline project assets