The U.S. Supreme Court announced Tuesday that it will, by early summer, rule on whether or not President Obama abused his authority in making executive actions on immigration.

The actions, those aimed at millions of undocumented parents of U.S. citizens and for children who were raised in the United States, have been on hold since they were announced a year ago. After the president announced the Deferred Action for Parents of Americans and Lawful Permanent Residents (DAPA) and expanding the Deferred Action for Childhood Arrivals (DACA), federal courts blocked their implementation because of challenges from 25 states led by Texas, as CNN reports.

If SCOTUS rules in favor of Obama's actions, some five million illegal immigrants will be shielded from deportation as they apply for worker eligibility and other benefits. The result of the ruling will also likely set the standard for what a future president can do without Congress's approval. 

Furthermore, if Obama's actions are approved, they will be implemented during his final months in office, securing the legacy he has hoped for since 2008.