Definition - What does Zambrano mean?
Zambrano is a reference to a 1993 court case in which undocumented illegal aliens challenged the INS over certain immigration standards. In the case, which is titled Zambrano v. INS, Zambrano claimed that the restrictions for legal immigration regarding those who might become government charges, or who might need public assistance, were unfair. This trial made it all the way to the Supreme Court.
Justipedia explains Zambrano
The result of this trial was that Zambrano ultimately had his case dismissed by the U.S. Court of Appeals. However the LIFE Act was passed soon after, which essentially expanded criteria for legal immigration. So essentially, the Zambrano v. INS case was a landmark case for immigration. It brought some important immigration issues to the forefront, and helped pave the way for some immigration policy changes, in the form of the LIFE Act, to take place.