(BIVN) – Months after President Donald Trump declared – by Tweet – that he would ban transgender individuals from serving in the U.S. military, Democratic-led states are joining together in opposition.

The Hawaii Department of the Attorney General issued this media release on Monday morning:

Hawaii Attorney General Doug Chin joined a coalition of 15 attorneys general in filing an amicus brief opposing the Trump Administration’s plans to ban open military service by transgender individuals.

The amicus brief, filed today with the U.S. District Court for the District of Columbia, argues that banning transgender individuals serving in the military is unconstitutional, against the interest of national defense, and harmful to the transgender community at large. The case, Doe v. Trump, was brought by GLBTQ Legal Advocates & Defenders and the National Center for Lesbian Rights.

The attorneys general argue in their brief that transgender individuals volunteer to serve in the armed forces at approximately twice the rate of adults in the general population, and that approximately 150,000 veterans, active-duty service members, and members of the National Guard or Reserves identify as transgender.

In the brief, the attorney generals state that since adopting open service policies, “there is no evidence that it has disrupted military readiness, operational effectiveness, or morale. To the contrary, anecdotal accounts indicate that the positive impacts of inclusion were beginning to manifest, as capable and well-qualified individuals who were already serving finally were able to do so authentically.”

Additionally, the attorneys general strongly support the rights of transgender people to live with dignity, to be free from discrimination, and to participate fully and equally in all aspects of civic life, and argue that these interests are all best served by allowing transgender people to serve openly in the military.

Led by Massachusetts Attorney General Maura Healey and joined by Attorney General Chin for Hawaii, other states joining in today’s brief include California, Connecticut, Delaware, Illinois, Iowa, Maryland, New Mexico, New York, Oregon, Pennsylvania, Rhode Island, Vermont, and Washington, D.C.

On August 25, Trump signed a Presidential Memorandum for the Secretary of Defense and the Secretary of Homeland Security on the subject of “Military Service by Transgender Individuals”:

Section 1. Policy. (a) Until June 2016, the Department of Defense (DoD) and the Department of Homeland Security (DHS) (collectively, the Departments) generally prohibited openly transgender individuals from accession into the United States military and authorized the discharge of such individuals. Shortly before President Obama left office, however, his Administration dismantled the Departments’ established framework by permitting transgender individuals to serve openly in the military, authorizing the use of the Departments’ resources to fund sex-reassignment surgical procedures, and permitting accession of such individuals after July 1, 2017. The Secretary of Defense and the Secretary of Homeland Security have since extended the deadline to alter the currently effective accession policy to January 1, 2018, while the Departments continue to study the issue.

In my judgment, the previous Administration failed to identify a sufficient basis to conclude that terminating the Departments’ longstanding policy and practice would not hinder military effectiveness and lethality, disrupt unit cohesion, or tax military resources, and there remain meaningful concerns that further study is needed to ensure that continued implementation of last year’s policy change would not have those negative effects.

(b) Accordingly, by the authority vested in me as President and as Commander in Chief of the Armed Forces of the United States under the Constitution and the laws of the United States of America, including Article II of the Constitution, I am directing the Secretary of Defense, and the Secretary of Homeland Security with respect to the U.S. Coast Guard, to return to the longstanding policy and practice on military service by transgender individuals that was in place prior to June 2016 until such time as a sufficient basis exists upon which to conclude that terminating that policy and practice would not have the negative effects discussed above. The Secretary of Defense, after consulting with the Secretary of Homeland Security, may advise me at any time, in writing, that a change to this policy is warranted.

Sec. 2. Directives. The Secretary of Defense, and the Secretary of Homeland Security with respect to the U.S. Coast Guard, shall:

(a) maintain the currently effective policy regarding accession of transgender individuals into military service beyond January 1, 2018, until such time as the Secretary of Defense, after consulting with the Secretary of Homeland Security, provides a recommendation to the contrary that I find convincing; and

(b) halt all use of DoD or DHS resources to fund sex reassignment surgical procedures for military personnel, except to the extent necessary to protect the health of an individual who has already begun a course of treatment to reassign his or her sex.

Sec. 3. Effective Dates and Implementation. Section 2(a) of this memorandum shall take effect on January 1, 2018. Sections 1(b) and 2(b) of this memorandum shall take effect on March 23, 2018. By February 21, 2018, the Secretary of Defense, in consultation with the Secretary of Homeland Security, shall submit to me a plan for implementing both the general policy set forth in section 1(b) of this memorandum and the specific directives set forth in section 2 of this memorandum. The implementation plan shall adhere to the determinations of the Secretary of Defense, made in consultation with the Secretary of Homeland Security, as to what steps are appropriate and consistent with military effectiveness and lethality, budgetary constraints, and applicable law. As part of the implementation plan, the Secretary of Defense, in consultation with the Secretary of Homeland Security, shall determine how to address transgender individuals currently serving in the United States military. Until the Secretary has made that determination, no action may be taken against such individuals under the policy set forth in section 1(b) of this memorandum.

Sec. 4. Severability. If any provision of this memorandum, or the application of any provision of this memorandum, is held to be invalid, the remainder of this memorandum and other dissimilar applications of the provision shall not be affected.

Sec. 5. General Provisions. (a) Nothing in this memorandum shall be construed to impair or otherwise affect:

(i) the authority granted by law to an executive department or agency, or the head thereof; or

(ii) the functions of the Director of the Office of Management and Budget relating to budgetary, administrative, or legislative proposals.

(c) This memorandum is not intended to, and does not, create any right or benefit, substantive or procedural, enforceable at law or in equity by any party against the United States, its departments, agencies, or entities, its officers, employees, or agents, or any other person.

(d) The Secretary of Defense is authorized and directed to publish this memorandum in the Federal Register.