Here is a list I collected before I found this spreadsheet. Many, many, many LARGE protests in red states, although I'll concede that only 1 of the top 10 took place in a state that voted for Trump.Washington, D.C. 1,000,000Los Angeles CA 750,000New York City NY 400,000Chicago IL 250,000Denver CO 200,000Boston MA 175,000Seattle WA 175,000San Francisco CA 140,000Madison WI 100,000Minneapolis/St. Paul MN 100,000Portland OR 100,000Oakland CA 84,000Atlanta GA 60,000Austin TX 50,000Philadelphia PA 50,000San Diego CA 40,000Phoenix AZ 36,000San Jose CA 30,000Des Moines IA 26,000Pittsburgh PA 25,000Houston TX 22,000Sacramento CA 20,000Santa Ana CA 20,000Tampa/St. Petersburg FL 20,000Raleigh NC 17,000Santa Cruz CA 16,000Cleveland OH 15,000Las Vegas NV 15,000Montpelier VT 15,000Nashville TN 15,000Tucson AZ 15,000Tallahassee FL 14,000Santa Fe NM 13,000St. Louis MO 13,000Oklahoma City OK 12,000Orlando FL 12,000Ann Arbor MI 11,000Albuquerque NM 10,000Asheville NC 10,000Augusta ME 10,000Charlotte NC 10,000Duluth MN 10,000Eugene OR 10,000Hartford CT 10,000Helena MT 10,000Ithaca NY 10,000Kansas City MO 10,000Miami FL 10,000New Orleans LA 10,000Olympia WA 10,000Omaha NE 10,000Portland ME 10,000Reno NV 10,000San Marcos CA 10,000Sarasota FL 10,000Seneca Falls NY 10,000Memphis TN 9,000Ashland OR 8,000Eureka CA 8,000