Dana Loesch captured it on video.
Breitbart approaches a bunch of astroturfing protesters, going down the line and asking each one to cite an example of what their protest sign says. After a classic response you have to see to believe, these paid thugs get called away by their leader so that they can try to figure out Plan B.
After the mob reforms, Breitbart approaches again and some lefty hag spits on Breitbart and then runs away into the crowd.
This captures the typical Democratic example of how to engage in any debate:
1. Hire a bunch of morons. (They count as jobs created after all.)
2. Engage in name-calling.
3. Resort to violence.
4. Go into hiding.