(CNN)The Supreme Court allowed President Donald Trump's transgender military ban to go into effect on Tuesday, dealing a blow to LGBT activists who call the ban cruel and irrational.

While the Court is allowing the ban to go forward, it said it would not hear arguments in the case for now, so it will continue to play out in the lower courts.

The four liberal justices on the Court objected to allowing the ban to go into effect.

The policy, first announced by the President in July 2017 via Twitter, and later officially released by then-Secretary of Defense James Mattis, blocks individuals who have been diagnosed with a condition known as gender dysphoria from serving with limited exceptions. It also specifies that individuals without the condition can serve, but only if they do so according to the sex they were assigned at birth.