A California federal judge issued a ruling blocking President Trump from using $2.5 billion in military funds to build a wall along the southern border.

The ruling by U.S. District Court Judge Haywood Gilliam, who is an appointee of former President Barack Obama, ruled to permanently block the $2.5 billion after issuing a temporary injunction in May to stop the administration’s use of the funds. The ruling stymies several construction projects in California, Arizona, and New Mexico.