ACT for America staged rallies on Saturday in New York, Chicago, Boston, Denver and Seattle, as well as many smaller cities to denounce Muslims' law (Shariah), which the group says poses a threat to American freedoms.
Participants chanted "No hate, no fear, Muslims are welcome here" on their way to City Hall, while a phalanx of bicycle police officers separated them from an anti-Sharia rally numbering in the dozens.
Sharia "is a legal or philosophical code derived from Islamic scripture and meant to guide the behavior of observant Muslims", as NPR's Tom Gjelten noted.
"Christians, the Catholic Church went through the modernization, the Jewish went through modernization".
Several anti-Sharia marches were planned past weekend in more than two dozen cities across the United States.
The civil rights legal advocacy group Southern Poverty Law Center classifies ACT as a hate-group, and the largest grassroots anti-Muslim group in the U.S. with a claimed membership of 280,000. The organization describes itself as "the NRA of national security".
"The Qu'ran teaches us that if you kill a person, you kill all of humanity", she said.
The Minnesota State Patrol says seven arrests were made during a "March Against Sharia" protest and counter-protest at the Capitol Saturday.
It wasn't immediately clear what prompted the clash between protesters and counter-protesters in Seattle, and the violence appeared to subside relatively quickly.
The so-called "March Against Sharia" protests were advertised as some kind of advocacy stand when they really were just a public platform to promote a prejudiced view of Islam.
Counterdemonstrators, though, outnumbered the protesters by about 2 to 1.
"Stop the killing under Sharia law", yelled one protester. "If they're against sharia, are you against feeding the poor? Because essentially that is Sharia", she told Bandlamudi.
Counter-protesters in Syracuse responded by shouting "Shame!"
Similar demonstrations and counter-protests took place in cities across the country.
People hold up signs during a counter-protest to an anti-Shariah law rally origanized by ACT for America on June 10, 2017 at City Hall in NY.
Demonstrators dispersed after about two hours, with police escorting Trump loyalists across the river while counter protesters chanted "hey hey, goodbye".
We The People Rising member and right-wing journalist Arthur Schaper, right, being confronted by an Anti-Trump counter protester during an Anti-Sharia law rally near the Inland Regional Center in San Bernardino on June 10, 2017. "Sharia is a barbaric system that the Islamic State is trying to impose in our country".
In Chicago, around 30 people demonstrated against Shariah while around twice as many people participated in a counter-protest held across the street.
About 40 people gathered at Mount Trashmore on Saturday afternoon. It's nothing to be enforced upon anyone. Like a Muslim can pray five times a day, that doesn't bother me.