This is the story I was trying to remember in my post #7.
DFL caucus in Minneapolis Cedar-Riverside ends in chaos, Minnpost, 2/5/2014
Police break up the meeting after a pre-caucus argument carries over into disputes among supporters of Rep. Phyllis Kahn and her challenger, Mohamud Noor.
... The caucus at the Brian Coyle Center in Cedar-Riverside produced an overflow crowd of more than 300, a pre-caucus argument handled by the police and a subsequent physical attack on one of the participants.
Eventually, staff from the Coyle center decided to shut down the event, and police quickly dispersed the crowd.
Emotions had been running high more than an hour before the scheduled 7 p.m. start and escalated even more by caucus time in the Cedar-Riverside Somali stronghold.
... Ilhan Omar, a staffer for Minneapolis Council Member Andrew Johnson and vice chair of the Senate district, was attacked by a group of about five people. Then a Noor supporter launched herself into the fray and was eventually shoved into a police officers grasp.
Police dragged the woman out of the building and handcuffed her, but eventually let her free. Omar escaped without serious injuries.
(but she was certainly beaten up -- see article. She's now in the U.S. Congress serving her 3rd term -progree)
MORE:
https://www.minnpost.com/politics-policy/2014/02/dfl-caucus-minneapolis-cedar-riverside-ends-chaos/
The defeat of a veteran 44-year state legislator (since 1972!) by a Somali-born person was a big shock to the DFL-iverse. It marked the beginning of a new day for the very white Minnesota political establishment.