Law360, New York (January 26, 2016, 3:31 PM EST) -- On Jan. 19, 2016, the U.S. Supreme Court agreed to take up the constitutionality of President Obama's executive action announced in November 2014, allowing certain undocumented immigrants to remain in the U.S. and obtain work permits. The lawsuit Texas v. the United States was filed by Texas and 25 other largely Republican-led states and seeks to block Obama's immigration program, known as the Deferred Action for Parents of Americans and Lawful Permanent Residents and the expanded Deferred Action for Childhood Arrivals. These states argue that Obama exceeded his presidential powers under the U.S. Constitution. The Obama administration argues that DAPA and the expanded DACA are a lawful exercise of Obama's executive discretion....