During the rally, the opposing groups reportedly threw shoes, bottles and fireworks at each other, and 11 people were injured during the conflict. Ten people were arrested in that protest.
Police in riot gear made at least 13 arrests and seized numerous prohibited items from the demonstrators by Saturday afternoon and indicated then that they anticipated more arrests would be made.
The day was selected by protesters to highlight the fact that Trump has never released his tax returns, as has been customary for presidential candidates and presidents for the past 40 years.
Trisha, who declined to state her last name after she received online threats for her participation in a previous protest, bandages Rudy McKay's head after he was injured in a clash between Trump supporters and counter-protesters in Berkeley. In confusion, anti-Trump protesters fled as supporters of the president charged after them, attacking stragglers.
Pro-Trump and Anti-Trump groups met in the streets in Berkeley, California Saturday, descending into violence that swept across social media. Democratic Rep. Maxine Waters, of California, said there's nothing to prevent Trump from releasing his income taxes and that "the simple truth is he's got a lot to hide".More news: Gronkowski pops into White House briefing
"I don't mind hitting" the counter-demonstrators, whom he called "neo-Nazis", Rhodes said.
The protest involved pro- and anti-Trump protesters and was similar to one at the same park March 4. Berkeley police continue to seek suspects who were caught on camera assaulting others during that event. He said the sign "means we're sick of living under neocon rule". PHOTOS: Both sides of Trump debate clash " Some say free speech and there is some free speech issues but on the other hand a lot of them are very antagonistic", one protester said.
City officials imposed a one-day rule for the protest. "Now Tax Returns are brought up again?" Wyden, the ranking Democrat on the Senate finance committee, has introduced legislation that would require sitting presidents, including Trump, to release their tax returns for the past three years.
Join us in a conversation about world events, the newsgathering process or whatever aspect of the news universe you find interesting or important. In the video, which at time of writing has accumulated almost 250,000 views, a female protester can be seen getting punched in the face by a male demonstrator.