Dub Nation meet Bernie Sanders.
The Democratic presidential hopeful wore a yellow Golden State Warriors hat prior to addressing supporters at a rally late Monday at Oakland's Frank Ogawa Plaza. Sanders has been campaigning in California ahead of the states' June 7 primary.
"Thank you Oakland!" Sanders said to cheers to launch his address. "First thing I need to know is do I have the right hat?"
Sanders' question was met with roaring cheers from the crowd.
"Does this guarantee me the California primary?" Sanders then asked the crowd before chuckling and taking the cap off.
Authorities said 20,000 people attended the rally.
After the rally, Sanders attended Game 7 of the Western Conference Finals between the Warriors and Oklahoma City Thunder at Oracle Arena in Oakland.
More on Sanders' Oakland visit.