A U.S. citizen can start the process of having their partner to the United States through a process known as family-based immigration. This includes filing a petition with U.S. Citizenship and Immigration Services https://tesswudr959705.blogkoo.com/immigration-sponsorship-for-spouses-by-u-s-citizens-bảo-lãnh-di-trú-cho-vợ-chồng-55186939