"F— you, Elon Musk,” Brazil’s first lady said as her husband geared up to host a high-stakes summit of Group of 20 leaders.

Rosangela da Silva, the wife of President Luiz Inacio Lula da Silva, took aim at the billionaire owner of the X social media platform at a Saturday event in Rio de Janeiro while talking about the need to regulate social media networks and combat fake news.

The feud has been brewing between Lula’s camp and the world’s richest man since even before Brazil’s Supreme Court blocked access to X earlier this year. Janja, as the first lady is known, last year threatened to sue the social media company after an apparent hack of her account, accusing Musk of failing to adequately respond.