Police tactics in Portland were much more interventionist than at the previous two Patriot Prayer rallies, where a hands-off approach allowed evenly matched groups of protesters and counter-protesters to become involved in running brawls.
But counter-protesters still turned up at Portland's plaza and waterfront park, carrying signs which read "fascists not welcome" and "fight the right".
The Rally and March Against White Nationalism, which was scheduled to begin at 12:30 p.m., was organized by the Portland Stands Against Hate group.
However, it only took minutes for some Antifa activists to begin lighting smoke bombs and throwing objects at police. Officials in Washington and OR closed the footpath of the Interstate 5 bridge over the Columbia River between the cities.
As the driver passes by the outstretched fingers and sustained verbal disapproval, one of the anti-fascists quickly snaps their wrist back and lobs what appears to be a half-full bottle of water at the driver's side door.
While he drove forward, protesters threw rocks and water bottles at the truck - prompting him to impulsively put his vehicle in reverse and accelerate towards the protesters.
The police asked any victims who have not made a report to come forward, and for anyone with helpful information, video or photo evidence of potential crimes to call the police.
Although no one was injured in the incident, it evoked memories of the Charlottesville vehicle ramming, which saw 20-year-old James Fields plow his auto into counter-protesters at a white supremacist rally last month, killing 32-year-old Heather Heyer.
At that point, a police vehicle pulled up directly behind the driver, and an officer arrested him at the scene.
But, according to Gibson, the original speakers and others will be at the Port of Vancouver Amphitheater in Vancouver at 2 p.m.
Gibson's group was joined by the right-wing group Hell Shaking Street Preachers - which regularly speaks out against the LGBT community, immigrants, and Muslims - and the Proud Boys, a right-wing nationalist group.
In Portland, from about 1pm, a token contingent of 10 Patriot Prayer supporters, minus Gibson, paraded inside a barricaded area protected by dozens of riot police.
Police said 36-year-old Nicholas Partin (aka Alanna Partin), of Portland was arrested on charges of disorderly conduct and resisting arrest, and 34-year-old Shawna L. Gonzalez was arrested on a charge of reckless endangerment. Both were stopped by police.