Rep. Joaquin Castro (D-Texas) vowed to continue his campaign against the immigration detention of children after picking up 5-year-old Liam Ramos from an ICE facility and escorting him back to Minnesota Sunday. Why it matters: After Ramos' release, Democrats are now focusing on other children that Immigration and Customs Enforcement has detained and the condition of detention centers. There's no direct data publicly available on the number of children in immigration custody, but nonprofit news outlet the Marshall Project's analysis in December found at least 3,800 children under age 18 had been detained in 2025 since President Trump took office for a second time.Department of Homeland Security assistant secretary Tricia McLaughlin told Axios Sunday the Trump administration "is committed to restoring the rule of law and common sense to our immigration system, and will continue to fight for the arrest, detention, and removal of aliens who have no right to be in this country." Driving the news: Castro said on Bluesky he picked Liam and his father, Adrian Ramos, up from a detention facility in Dilley, Texas, on Saturday night and escorted them back to Minnesota Sunday morning. He had called for the release of the 5-year-old and other detained kids and vowed Sunday he "won't stop until all children and families are home." Screenshot: Rep. Joaquin Castro/Bluesky Zoom in: Minnesota Tim Walz (D) said on Bluesky it shouldn't take a court order . "There are no beds, no real blankets, minimal food, extremely cold temperatures. People are in locked cells and leg shackles," she said."Everything I saw showed me this operation is chaotic, disorganized, ineffective and dangerous," Morrison alleged."I was also able to speak with two of the women who were being held there, and both of them shared harrowing experiences," she said."Families are being ripped apart. People aren't being treated with the dignity that every human being deserves. ICE is not going after the worst of the worst