Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Factbox: Supreme Court Hears US v Texas by VOA News The U.S. Supreme Court is hearing Monday arguments in a landmark case -- the [1]United States v Texas -- debating the legality of President Barack Obama's executive actions on immigration. Who is affected: Roughly 4 million undocumented immigrants who are living in the United States. What does the court case involve: The case focuses on Obama's 2014 program known as [2]Deferred Action for Parents of Americans (DAPA). The program defers deportation for undocumented immigrants who have been in the U.S. since at least 2010, have a child who is a U.S. citizen or is in the country legally, and do not have a criminal record. Obama said he took executive action because Congress had failed to overhaul the immigration system. Who is behind the lawsuit: Texas is leading 26 states as well as congressional Republicans in challenging Obama's executive actions. They argue Obama doesn't have the power to effectively change immigration law. Possible court outcomes: Side with administration: About 4 million people would be allowed to live and work in the U.S. temporarily without constant fear of deportation. Side with the states: The lower court rulings, which have frozen the immigration actions, would likely stand through the remaining months of Obama's presidency. Tie 4-4: A tie is possible after the death of Justice Antonin Scalia in February, which left eight members on the court. A tie would leave the two immigration programs in limbo. Sidestep immigration issue: The high court also could decide that Texas and the other states don't have the right to sue in federal court, a procedural outcome that would largely sidestep the divisive immigration issue. Decision expected: The court is expected to decide by late June. Arguing the case: Administration is represented by its top appellate lawyer, Solicitor General Donald Verrilli Jr., who has argued many high-profile cases before the court, including the Affordable Care Act, the constitutionality of same-sex marriage and the Defense of Marriage Act. The states are led by Texas' solicitor general, Scott Keller, who has argued before the court regarding Texas' right to reject a proposal for license plates featuring a Confederate battle flag as well as in defense of Texas' sharp restrictions on abortion clinics. Where the 2016 presidential candidates stand: Republicans: Candidates Donald Trump, Ted Cruz and John Kasich have said they would immediately reverse any actions allowed to take place. Democrats: Hillary Clinton and Bernie Sanders have said they would expand upon those efforts. Some material for this report came from AP. __________________________________________________________________ [3]http://www.voanews.com/content/supreme-court-us-texas-immigration-ca se/3290305.html References 1. http://www.scotusblog.com/case-files/cases/united-states-v-texas/ 2. https://www.ice.gov/daca 3. http://www.voanews.com/content/supreme-court-us-texas-immigration-case/3290305.html