U.S. Immigration and Customs Enforcement violated Jeanette Vizguerra’s First Amendment rights by detaining — and planning to deport — the Colorado immigration advocate, her attorneys argued in federal court in Denver on Friday.

Local musicians and artists rallied to support activist Jeanette Vizguerra, who is detained by ICE, at a benefit concert for her legal fees.

A federal judge on Friday heard that the lawyers for prominent Denver immigration advocate Jeanette Vizguerra anticipate amending their petition for her release by adding a claim that officials detained her in retaliation for her First Amendment-protected activity.