Lawyers for a Spanish-language journalist who's been in federal immigration detention since June are asking a judge to order his release. They argued in a court filing Wednesday that the government is retaliating against Mario Guevara for his news coverage and is holding him in violation of his constitutional rights. Guevara is a native of El Salvador and was arrested by local police June 14 while covering a protest outside Atlanta. U.S. Immigration and Customs Enforcement took him into custody a few days later. The court filing says the government is violating Guevara’s constitutional rights to free speech and due process.