Chelsea Clinton made her pitch to only a couple dozen voters in Pittsburgh today — and one attendee was very upset.

A photo posted by Andrew Whitley, a regional organizer for the Clinton campaign, showed the small crowd.

https://twitter.com/AndrewWhitleyVA/status/720257487669047297

The event wasn’t without its drama.

Joshua Patton tweeted a video of a protester disrupting the event.

The video — which doesn’t have audio — shows a black woman holding up a phone, shaking her fist and yelling.

A white campaign staffer appears from the rear of the crowd to lead a chant to drown out the woman. When that doesn’t work, the video shows him getting in her face.

Another angle shows the confrontation, with the woman screaming, “She killing us! Blood on your hands!”