Tens of thousands of Trump supporters marched the streets of Washington, D.C., in the "Million MAGA March" on Saturday.
The event was advertised as a way to "stand up and fight against the fraudulent election and make your voices count."
"We demand a transparent election process, free of fraudulent ballots," a post from the event's Twitter account reads. "We stand with President Donald J. Trump in his fight for freedom against crooked D.C. bureaucrats!"
President Trump posted on Twitter about the event on Friday and Saturday. Trump also did a "drive-by" at the event on Saturday.
Police reportedly arrested 10 people on Saturday: four for firearms violations, two for simple assault, two for disorderly conduct, one for no permit, and one for assault on a police officer.
Fighting broke out "about half an hour" before the event officially started between some Trump supporters and some members of Refuse Fascism.
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