Story highlights Bernie Sanders supporters briefly interrupted a state delegation meeting Thursday morning

The protests comes just hours before the final day of the Democratic convention

Philadelphia (CNN) Angry Bernie Sanders delegates from California are leaving the door open to more protests from the floor of the convention Thursday night during Hillary Clinton's address.

"I'm not really at liberty to divulge the specifics of actions other than to tell you stay in touch with California. We lead the way," Robert Shearer, northern California delegate coordinator for Sanders, told CNN when asked if they'd protest Thursday evening. "I could tell you that we're not here to protest people, we're here to fight for causes, and that's what it's been about all along."

Sanders delegates complained that Democratic National Committee staffers and Clinton delegates would sit in their seats whenever they got up to get food or use the restroom and then not allow them to return.

Shawnee Badger, a 22-year-old Sanders delegate from California, also accused Clinton staff of blocking a microphone when Sanders supporters were chanting against former CIA Director Leon Panetta.

Messages left with the DNC and Clinton campaign were not immediately returned.

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