Research by the Pew Research Center found that approximately 69 million women could not use their birth certificate to prove their identity or citizenship status under the SAVE Act. Additionally, 5 percent of married men have also changed their surname, accounting for approximately 4 million men nationwide who could also not present an acceptable birth certificate under the SAVE Act. Only 1 in 4 Americans have a valid passport. The Brennan Center estimates that around 21m Americans would have d…