A federal immigration agent appeared to knee a man in the face multiple times during an arrest in Minnesota ... and it's all on video.

As temperatures plummet in Minnesota, the struggle between the Trump administration and opponents of Operation Metro surge are playing out indoors, as a preliminary injunction issued by a US District judge Friday night will now prevent federal agents from retaliating against peaceful protesters or stopping people in their cars if they aren’t obstructing operations.

Man arrested in Minneapolis riots allegedly assaulted federal agent while armed with weapons, DHS says. Incident follows ICE shooting that sparked unrest.

Protests in Minneapolis escalated as thousands clash with ICE over enforcement tactics after fatal shooting.