The Trump administration asked a federal judge late Wednesday for an emergency order blocking transgender military enlistments that are set to begin Jan. 1.

The motion filed late Wednesday in federal district court in Washington, D.C., requests a decision on the request by Monday, and if granted, it could allow the Pentagon to again delay bringing new transgender troops into the services.

The Pentagon was ordered last week by Judge Colleen Kollar-Kotelly to begin transgender enlistments and commissioning at the beginning of next year despite President Trump’s order to abandon the plans and phase out open service by those troops.

The earlier injunction forcing Defense Secretary Jim Mattis to continue with the enlistments is part of the Doe v. Trump lawsuit filed in D.C. and is becoming an early court test for Trump’s ban, which was first announced via a series of tweets in late July.

Plaintiffs in the case will oppose the emergency stay request filed by the Justice Department, said Shannon Minter, a lead attorney and legal director for National Center for Lesbian Rights.