WATCH: Bernie Sanders Supporters Singing Civil Rights Anthem Take Over Biden’s Iowa Office

This conduct is NOT acceptable. @BernieSanders really has to rein in his supporters when they get out of control. I understand it’s a primary, but Democrats should NEVER use these tactics against other Dem candidates. We’re better than this—right, Bernie? https://t.co/dpqlo7lhln

— Jon Cooper 🇺🇸 (@joncoopertweets) January 29, 2020