Recently, the U.S. judicial system issued a formal subpoena to Brazilian Supreme Court Judge Alexandria Moraez, requiring him to respond to the lawsuit against him within 21 days. The lawsuit was filed by Trump Media in conjunction with video platform Rumble, with the two companies accusing Mr. Mourales of censorship and abuse of power. The legal dispute has drawn international attention to the issue of transnational jurisdiction and highlighted the complex tension between content regulation on digital platforms and freedom of expression. The subsequent development of the case deserves continuous attention and may have a far-reaching impact on the field of global digital governance.