Trump reversed his tough stance on separating families after days of outrage over the policy from at home and overseas.
Donald Trump is directing agencies to reunite immigrant families separated at the US-Mexico border, he said during a meeting with his cabinet at the White House.
With House Republicans' immigration bills likely to go down in flames Thursday afternoon, many vulnerable GOP lawmakers are fearing the political ramifications of their inaction in the face of public outrage over the mass separation of migrant children and families.
Markey, in a Wednesday evening speech from the U.S. Senate floor, cast the administration's "zero tolerance" approach to undocumented immigrants as "inhumane", arguing that it "sends a shudder down the spine of the Statue of Liberty, but not that of our president".
In Texas, Los Angeles Mayor Eric Garcetti described uncertainty about access to legal representation for immigrant families and maximum holding periods for those accused of illegally crossing the border.
"They don't care about the children". The Republicans want security and insist on security for our country and we will have that.
After her tour of the children's housing facility, Mrs. Trump is scheduled to visit a border patrol processing center and participate in a roundtable with agents from US Immigration and Customs Enforcement.More news: Did you see Shaqiri and Xhaka's controversial celebrations against Serbia — Albanian Eagle
The practice, and accompanying images of children crammed into cages, sparked widespread condemnation from activists, Democrats and several Republicans.
"This is a humanitarian crisis", Seattle Mayor Jenny Durkan said.
The spokeswoman also told the network that Melania told her husband, President Donald Trump, "I'm headed down to Texas", and "he was supportive".
Republicans in the U.S. House of Representatives have not yet rounded up the votes needed to pass immigration legislation they plan to take up later on Thursday, a member of the House Republican leadership said.
The more conservative bill would deny the chance of future citizenship to "Dreamers" - immigrants brought illegally into the United States years ago when they were children.
Trump also said that first lady Melania Trump visited detention centers at the border today because 'it really bothered her to be looking at this and seeing it'. She spoke to many individually through a translator, and as she walked out she told them: "Be kind and nice to each other, OK?"
"This was 100 percent her idea. There was no hidden message".