Yes, an arrest warrant was issued. From the complaint[1]:
> On or about April 17, 2025, an authorized immigration official found probable cause to believe Flores-Ruiz was removable from the United States and issued a warrant for his arrest. The warrant provided, “YOU ARE COMMANDED to arrest and take into custody for removal proceedings under the Immigration and Nationality Act, the above-named alien [Flores-Ruiz identified on warrant].” Upon his arrest, Flores-Ruiz would be given a Notice of Intent/Decision to Reinstate Prior Order. He would then have an opportunity to contest the determination by making a written or oral statement to an immigration officer.
He'd been deported in 2013 and snuck back in some time later. He was in Milwaukee county court that day because he'd been charged with three counts of domestic battery.
1. https://storage.courtlistener.com/recap/gov.uscourts.wied.11...