He federalized National Guard troops and sent them into Los Angeles, Portland, and Chicago over the objections of the governors who normally command them. In December 2025 the Supreme Court's conservative majority refused to allow the Chicago deployment, finding no legal authority “that would allow the military to execute the laws in Illinois.” He withdrew the troops and repeatedly threatened to invoke the Insurrection Act, last used in 1992, to get around the courts.
SourcesThe Court's own order (SCOTUSblog) · The ruling, NPR
