Several speakers amped up the crowd.
From New York City to Raleigh, N.C., from Austin to Washington, D.C., Trump supporters answered that call - though in many instances, counterprotesters were also there to meet them.
St. Paul police detained at least five people for lighting fireworks to disrupt a weekend pro-Trump rally at the State Capitol. Ruthie Hendrycks, founder of Minnesotans Seeking Immigration Reform, asked the crowd gathered in the Capitol rotunda.
Jeff Ryan, a retired Trump supporter from Hayward, came draped in an American flag.
Trump supporter Tricia Cunningham said the rally had a peaceful message of unity. Local members of the "Three Percenters", a militia movement, showed up to provide security.
In the Coachella Valley, supporters gathered in downtown Palm Springs to show their favor for Trump. Civic Center Park, a lot of them anti-Trump protesters. I would be very anxious if, in fact, the Obama administration was able to obtain more lawfully about Trump campaign activity with foreign government.
About 3:22 p.m., BPD officers blocked off the street from Allston Way to Martin Luther King Jr.
"There has been a bunch of fights and pepper spraying and tear gassing and yeah, it just has gotten progressively worse as we met", said Kiki Valenzuela, an anti-Trump protester. Across the country in Olympia, Washington, state troopers said four anti-Trump protesters were arrested for assaulting a police officer during a pro-Trump rally.
Counter-protesters have said that there is the potential for white nationalists to attend the march, but organizer Rich Black has pushed back against that suggestion in online postings, saying that no organizers have any association with white nationalist groups.
Near the city of Mar-a-Lago in Florida, people from both sides exchanged profanity.
Hollis Harper, of Oklahoma City, held a sign with the names of Trump and Russian President Vladimir Putin overlaid on a Russian flag. "We have to educate people to peacefully demonstrate their opinion".
Clashes broke out in Berkeley, California where 10 people were arrested after counter-protesters confronted each other in a rally that turned violent and left seven people injured.