This week, the U.S. Supreme Court will hear arguments in what could be one of the most significant cases of the 21st century: birthright citizenship.Before the Court is whether the Trump executive orderthat endsbirthrightcitizenshipcomplies with thecitizenshipclause of the 14thAmendment, after multiple judges blocked the order from taking effect as it was litigated.In plain speak, the Court will look at whether someone born on U.S. soil automatically becomes a citizen irrespective of their parents status.ALITO BLASTS LAWYER'S WORD-SALAD BLURRING ASYLUM LAWGiven that courts have routinely upheldbirthrightcitizenshipfor over a century now, the Trump administration faces an uphill battle.However, the current Court has not shied away from overturning high-profile decisions: think Dobbs overturning Roe (abortion), and Loper overturning Chevron (the administrative state). The mere fact the Court decided to take up this issue at all is very interesting.As always, the devil will be in the details in terms of how broadly, or narrowly, they decide the case or if they find some way to punt it altogether.The FourteenthAmendment,Section 1of the Constitutionstates: "All persons born or naturalized in the United States, and subject to the jurisdiction thereof,are citizens of the United States and of the State wherein they reside." SUPREME COURT PREPARES TO REVIEW TRUMP EXECUTIVE ORDER ON BIRTHRIGHT CITIZENSHIPIts history: The FourteenthAmendment was ratified in 1868 in response to 1) the end of the Civil War and 2) the 1857 Dred Scott decision, which concluded that enslaved people (and their children) were not American citizens and thus had no rights and couldnt sue in federal court, among other things. Notably, Michigan Senator Jacob Howard wrote the "subject to the jurisdiction thereof" clause and said in speeches at the time that the clause did not include "persons born in the United States who are foreigners, aliens, who belong to families of ambassadors or foreign ministers."Why this matters: In the upcoming arguments, expect a lot of discussion about what "subject to the jurisdiction thereof" means, especially because the subsequent Immigration and Nationality Act of 1952 mirrors the language of the 14thAmendment that a citizen is someone who is born in the United States and subject to the jurisdiction thereof.DC COURT RULINGS STALL TRUMP AGENDA ACROSS IMMIGRATION, POLICING, FED RAISING STAKES ON EXECUTIVE POWERWongKimArk: The 1898 U.S. Supreme Court decision that gave usbirthrightcitizenshipas we know it today. The case involved the U.S.-born adult child of Chinese nationals who had been permanently domiciled in the U.S. who was denied reentry into the U.S. after returning from a trip to China. At the time, it was generally difficult for Chinese nationals to become citizens.In its decision, the Supreme Court held that children born on U.S. soil are automatically grantedcitizenshipwith very few exceptions, such as children of diplomats. It interpreted the "subject to the jurisdiction thereof" to mean subject to the laws of the U.S.The Court reasoned that citizens and non-citizens alike are subject to the laws of the nation they are in. The Court emphasized that Arks parents were "permanently domiciled" in the U.S. This decision was controversial at the time because it ignored previous Supreme Court language that had found children born to alien parents were not citizens. However, in Wong Kim Ark, the Court dismissed that argument in its opinion, finding that previous language was mere "dicta," i.e., language that was not necessary to those decisions, and thus, did not create binding precedent.The bottom line:This is the blockbuster case of this Supreme Court term. A decision is expected late June.