BERKELEY, CALIFORNIA — Conservative commentator Ann Coulter was invited to the University of California-Berkeley campus Wednesday evening to deliver a speech sponsored by the Berkeley College Republicans.

Several hundred angry protesters swarmed the venue in an attempt to shut down her appearance, forming a wall to prevent students from entering the auditorium, and yelling expletives at the police who were there to provide security.

Multiple masked protesters were arrested, and police were forced to form a line between screaming protesters and exiting attendees.

My Berkeley "Man About Town" timed these photos of the same bulletin board exactly 10 minutes apart ... pic.twitter.com/marRjyOZk8 — Ann Coulter (@AnnCoulter) November 20, 2019

My red carpet walk! https://t.co/11ntYyRxDH — Ann Coulter (@AnnCoulter) November 21, 2019

The Berkeley College Republicans sponsored Coulter's speech at Wheeler Hall which was delivered mostly uninterrupted except for an outburst or two from a few hecklers in attendance. Even with the main entrance to the venue blocked by protesters with interlocked arms, seats in the auditorium were over two-thirds filled.

“We would like to thank all our attendees, especially those who got punched and kicked while waiting outside.”

More than 2000 protestors showed up outside our @AnnCoulter event tonight but we were undeterred. We would like to thank all our attendees, especially those who got punched and kicked while waiting outside. Your contribution to protecting free speech on campus is invaluable! pic.twitter.com/p10GdhIFh7 — Berkeley College Republicans (@BerkeleyCRs) November 21, 2019

Amber Tang, a reporter from the student newspaper, The Daily Californian, was in the crowd and posted several alarming videos to her Twitter account.

Protesters have now turned away multiple event attendees from this south entrance #Coulterprotest pic.twitter.com/ciq3CZbolJ — Amber Tang (@ambertang_dc) November 21, 2019

“Hey hey, ho ho, Ann Coulter has got to go” chant protesters as they wait for attendees to leave the event #Coulterprotest pic.twitter.com/iWoicFPJm8 — Amber Tang (@ambertang_dc) November 21, 2019

“The cops and the Klan go hand in hand” allege protestors as they follow officers uphill #Coulterprotest pic.twitter.com/T38srzFGTT — Amber Tang (@ambertang_dc) November 21, 2019

Officers have formed a wall on the north side of Wheeler, parallel to a wall of protesters #Coulterprotest pic.twitter.com/zEstc8Xi6e — Amber Tang (@ambertang_dc) November 21, 2019

“Go home” protesters chant, linking arms to prevent a woman from entering Wheeler Hall #Coulterprotest pic.twitter.com/KX6WB4eTnM — Amber Tang (@ambertang_dc) November 21, 2019

Conservative writer and independent journalist, Andy Ngo, was also posting videos of the unfolding events live on Twitter.

Left-wing protesters at @UCBerkeley form a human wall with linked arms to block others from entering the @AnnCoulter speech earlier tonight. pic.twitter.com/938ZWCP8b7 — Andy Ngo (@MrAndyNgo) November 21, 2019

“Get the f— out of here, bitch!” Far-left protesters block and scream at woman attempting to get to Wheeler Hall for the @AnnCoulter event. #antifa pic.twitter.com/xroAvCWT9l — Andy Ngo (@MrAndyNgo) November 21, 2019

In addition to far-left student protesters, outsider agitators with antifa groups By Any Means Necessary and Refuse Fascism amassed at @UCBerkeley to prevent people from seeing @AnnCoulter speak. pic.twitter.com/TZp4QLDNvN — Andy Ngo (@MrAndyNgo) November 21, 2019

Far-left protesters curse expletives at police who guarded Wheeler Hall at @UCBerkeley where @AnnCoulter spoke. The protesters also prevented some from attending the event by forming a wall. #antifa pic.twitter.com/TvG1Oj5HU7 — Andy Ngo (@MrAndyNgo) November 21, 2019

Doxing has been a common intimidation strategy used in previous protests.

Can we find who he is. He was trying to get past a picket line to see Ann Coulter at UC Berkeley @YesYoureRacist pic.twitter.com/DALmdWaPVM — robynne 😌✨ (@robynneelise_) November 21, 2019

Notice the "Left-Right Dialogue" slogan printed on the empty "empathy" tent. It's unclear how the two sides are supposed to have a dialogue in an environment marked by masks, screaming and in some case physical violence.