In a new interview with MSNBC, Sen. Jeff Merkley accuses the Trump administration of "intentionally [creating] a humanitarian disaster."
The president raises the issue of bypassing Congress by declaring a national emergency to get the border wall funding he seeks.
The homeland security secretary has refused to accept responsibility, instead blaming "open borders" advocates and the child's own parents.
The president also says he has given troops he sent to the border the OK to use lethal force against migrants "if they have to."
Kirstjen Nielsen defended the administration's practice of separating children from parents, but the president is said to have soured on her.
A new rule by the Department of Homeland Security flouts 20 years of precedent mandating a limit of 20 days’ detention.
Officers claim the targeting of undocumented immigrants is preventing them from doing their jobs.
The White House press secretary is made to leave the Red Hen in Lexington, Va., because she works for President Trump, and the incident has set off a fierce debate.