Transgender
One effort to quantify the population gave a "rough estimate" that 0.3 percent of adults in the US are transgender, overlapping to an unknown degree with the estimated 3.5 percent of US adults (1-in-30) who identify as LGBT. More recent studies released in 2016 estimate the proportion of Americans who identify as transgender at 0.5 to 0.6%. This would put the total number of transgender Americans at approximately 1.4 million adults ().
Transgender legal history in the United States
On August 9, 2017, five transgender United States military personnel sued Trump and top Pentagon officials over the proposed banning of transgender people from serving in the military. The suit asks the court to prevent the ban from going into effect. Two major LGBT-rights organizations filed a petition in the United States District Court in Washington on behalf of the five transgender personnel. On August 28, 2017, the American Civil Liberties Union (ACLU) of Maryland filed a federal lawsuit, "Stone v. Trump", on behalf of several transgender military service members, alleging that the ban violated their equal protection rights. The same date, Lambda Legal filed a federal lawsuit in Seattle on behalf of three trans people, the Human Rights Campaign, and the Gender Justice League, alleging that the ban violated equal protection, due process and free speech protections. On September 5, 2017, Equality California filed a lawsuit in United States District Court for the Central District of California against the ban; the lawsuit includes four named and three unnamed transgender plaintiffs.