In the case of Estin v. Estin (1947), the U.S Supreme Court addressed issues related to divorce and alimony across state lines. Mr. Estin, a New York resident, was ordered by a New York court to pay his wife permanent alimony after their separation in 1933. In 1945, he obtained an ex parte divorce in Nevada without notifying his wife who continued living in New York; this divorce decree did not include any provision for alimony payments. The issue before the Supreme Court was whether Nevada's decree could terminate Mrs. Estin's right to receive support as established by the New York judgment or if full faith and credit should be given to both decrees despite their conflict. The court ruled that while Mr.Estin’s personal obligations were terminated through Nevada’s jurisdiction over him during his six-week residency there, it had no power over Mrs.Estins rights derived from her status under NY law where she remained domiciled throughout. Therefore, although Mr.Estins marital bonds were severed due to Nevadas jurisdictional authority over him at that time,the financial obligation imposed on him by NY courts still stood.This ruling set precedent for future cases involving interstate recognition of judgments relating specifically with matrimonial domicile laws and spousal support orders.

In the dissenting opinion for Estin v. Estin, Justice Jackson argued that New York's jurisdiction over a Nevada divorce decree was unconstitutional and violated full faith and credit clause of the Constitution. He contended that once a state has granted a divorce, it should be recognized by all other states without exception or re-examination. According to him, allowing one state to nullify another state's legal actions would undermine national unity and create confusion in interstate matters such as marriage and divorce laws. Furthermore, he expressed concern about potential harm caused by conflicting judgments from different states on the same issue - in this case spousal support payments after divorce - which could lead to unfair treatment of parties involved.