A group of news organizations filed an emergency petition Thursday, asking Nevada’s highest court to unseal the ongoing family succession battle playing out in a Reno courtroom that will determine the future of Rupert Murdoch’s vast media empire.

The conservative slant of Murdoch’s media empire—which includes Fox News and the Wall Street Journal—could be under threat amid a high-stakes succession battle.

Next week, a probate official will hear evidence in a clash between Rupert Murdoch and some of his children over who should control his media companies after he dies.