Author JK Rowling is celebrating the UK Supreme Court's ruling that transgender women aren't legally women in celebratory posts on X, saying, “I love it when a plan comes together."

Judges say the "concept of sex is binary" while adding that transgender people will still have protection against discrimination.

The Supreme Court on Thursday agreed to hear oral arguments over President Donald Trump’s request to enforce a plan to end birthright citizenship against all but a handful of individuals, though it deferred a request from the administration that would have allowed it to implement its plan immediately.

The Supreme Court is set to hear arguments in May over President Donald Trump’s executive order aimed at ending birthright citizenship for children of noncitizens.

The Supreme Court will hear arguments on May 15 on a Trump administration request to partially enforce the president's executive order that seeks to end birthright citizenship.