In January, a federal judge in San Francisco blocked the Trump administration's decision to end DACA. The appeals court is expected to begin hearing arguments Tuesday afternoon.
DACA supporters rallied outside of a Southern California federal courthouse while inside arguments were heard which will impact their future. Authorities representing the Trump administration have their work cut out for them as they try to convince the 9th U.S. Circuit Court of Appeals that the White House has the authority to end DACA.
Judges focused on the administration's rationale for ending the program and whether they had authority to intervene rather than exploring the merits of allowing hundreds of thousands of young immigrants to remain in the USA under DACA. Trump has even said he has considered breaking up the court. California is one of a dozen states which has filed lawsuits over the president's decision to phase out the program.
DACA grants deportation protection to about 800,000 people, known as "Dreamers", who were brought to the U.S.as children.
The Trump administration wants the former ruling thrown out.
One dead, several injured in Paris knife attack
In addition to the person who died, two others were seriously injured and were transferred to George Pompidou Hospital, he added. On Monday, police officials sustained injuries after two bike-borne assailants attacked the police headquarters in the city.
Michael Mongan, deputy solicitor general at the California Department of Justice, told the judges the administration had to explain why it believed DACA was unlawful and faced the risk of being invalidated by a court.
Federal judges in NY and Washington, D.C., also have ruled against Trump on DACA.
The appeals court said Congress specified that "federal courts may not hear an election contest involving the office of a "member of a state legislature.'" The appeals court judges also said they were not persuaded by arguments that the five voters" constitutional rights were violated.
He said two of the picks being reviewed in committee demurred when asked if the Supreme Court correctly decided Brown v Board of Education, the case that ended segregation in schools. Trump and Senate Republicans are trying to stack the courts with extremists.