Here's a look at the latest reactions on social media:
Many people like these folks of the Oath Keepers are wearing helmets and bullet proof vests #coulterprotest pic.twitter.com/Fkv0yD57E3
— Alex Yoon-Hendricks (@ayoonhendricks) April 27, 2017
The crowd starts to disperse, citing antifa's incoming arrival #coulterprotest pic.twitter.com/OdYCwZPEku
— Ashley Wong (@wongalum) April 27, 2017
It's 2pm, and the first person out speaking is Joey Gibson from Washington "out here to support California" pic.twitter.com/jnZuqkDhwB
— Pamela Larson (@PamReporting) April 27, 2017
"Empathy" tent at #Berkeley #CivicPark Lady giving guy with helmet on a neck massage ahead of expected rally after @anncoulter cancellation. pic.twitter.com/84TKYDF8B6
— Laura Anthony (@LauraAnthony7) April 27, 2017
They are 'Collage' (as in art) Republicans putting on show. Love the banana mic. #CoulteratCal #abc7now pic.twitter.com/xlR44ImtDB
— Wayne Freedman (@WayneFreedman) April 27, 2017
The #UCBerkeley campus is heating up. #CoulteratCal #abc7now pic.twitter.com/xXlVGwQ7MQ
— Wayne Freedman (@WayneFreedman) April 27, 2017
#UCPD led him away. Reasons? Unknown. Went peacefully. #CoulteratCal #abc7now pic.twitter.com/t2Na6DaDwg
— Wayne Freedman (@WayneFreedman) April 27, 2017
Oath Keepers are here to provide security for protestors&speakers- saying they want to protect the innocent. pic.twitter.com/0IsFdznsjm
— Amy Hollyfield (@amyhollyfield) April 27, 2017
Just some of the scene here at #Berkeley #CivicPark Competing groups may rally but so far mostly pro-Coulter #ABC7now pic.twitter.com/IIVugYwjhy
— Laura Anthony (@LauraAnthony7) April 27, 2017
Oath keepers in Berkeley are filling bottles with soap water to treat skin irritated from pepper spray- just in case protest turns violent. pic.twitter.com/YNyffffR8T
— Amy Hollyfield (@amyhollyfield) April 27, 2017
A group of Trump supporters chat about their past experiences with antifa protesters pic.twitter.com/fSZn5O2VRE
— Alex Yoon-Hendricks (@ayoonhendricks) April 27, 2017
Conservative Ann Coulter sent email 2 @AP she may stroll "graveyard of 1st Amendment" - as in walk #ucberkeley- despite scrapped speech.
— Kristen Sze (@abc7kristensze) April 27, 2017
Maybe a few dozen people gathered so far at #Berkeley's #CivicPark ahead expected rally in wake of @AnnCoulter speech cancellation. #abc7now pic.twitter.com/8k6hlNEE4u
— Laura Anthony (@LauraAnthony7) April 27, 2017
More #Berkeley PD standing by.#CoulteratCal #abc7now pic.twitter.com/r2oqxwUI07
— Wayne Freedman (@WayneFreedman) April 27, 2017
Strong police presence in #Berkeley today anticipating #CoulteratCal pic.twitter.com/sMjofvMpEV
— Wayne Freedman (@WayneFreedman) April 27, 2017
Plastic barriers have been set up overnight in front of Sather Gate #coulterprotest pic.twitter.com/rUVZgKevGI
— Adrienne Shih (@adrienneshih) April 27, 2017
Protesters congregating in small group on Sproul—say police won't allow them to hold signs "in protest of fascism" #coulterprotest pic.twitter.com/c8Pit6rEXG
— Adrienne Shih (@adrienneshih) April 27, 2017
Increased police presence on Sproul today on my way to class #CoulteratCal #coulterprotest pic.twitter.com/DaLyCoxd89
— Adrienne Shih (@adrienneshih) April 27, 2017
These folks are from OC, Sacramento & Pleasanton — "Gotta have the right people around you with the right mind set" pic.twitter.com/uOHoU4OPA8
— Alex Yoon-Hendricks (@ayoonhendricks) April 27, 2017
Berkeley residents gathering to send their own message today- violence is not welcome here. pic.twitter.com/AdFife4h0f
— Amy Hollyfield (@amyhollyfield) April 27, 2017
So far the @AnnCoulter Berkeley event seems to be going well & peaceful. Still a few hours until the official start. https://t.co/iANNNKpifH
— Deplorable Carl (@CarlKenner) April 27, 2017
Lots of police on campus today. As in LOTS of police. #berkeley #BerkeleyProtest pic.twitter.com/1XC6Ms8ukB
— gar (@the_gar_spot) April 27, 2017