Crowd is massive, now overflowing Congress Plaza and taking up a block-long stretch of Michigan Avenue.

Reminder: this event was only announced yesterday.

Good afternoon from downtown Chicago, where despite heavy snowfall, thousands have gathered for an anti-ICE/CBP demonstration in solidarity with the Twin Cities. More are still streaming in.

Lt. Illinois Gov. Juliana Stratton just addressed the crowd, and called for ICE to be abolished.