Court upholds block on obamas immigration plan
You're referring to the 2014 immigration plan proposed by President Barack Obama, also known as the Deferred Action for Parents of Americans and Lawful Permanent Residents (DAPA) program.
In November 2014, a federal district court judge in Texas issued an injunction blocking the implementation of DAPA, which would have allowed certain undocumented immigrants who are parents of U.S. citizens or lawful permanent residents to apply for a three-year reprieve from deportation and obtain work permits.
The court's decision was based on the argument that the Obama administration had overstepped its authority by implementing the program without going through the formal rule-making process required by the Administrative Procedure Act.
The Obama administration appealed the decision to the Fifth Circuit Court of Appeals, but in July 2016, the court upheld the injunction, ruling that the administration had indeed exceeded its authority.
The Supreme Court ultimately weighed in on the issue in June 2016, issuing a 4-4 split decision that left the lower court's injunction in place. This meant that the DAPA program was effectively blocked, and the Obama administration was unable to implement it.
It's worth noting that the Trump administration has since rescinded the DAPA program, and the current administration has taken a different approach to immigration policy.