Kashkari has raised $1.3 million since joining the race in January, CNN said. But his opponent Brown is sitting on $20 million.

"We've got to do this on the cheap, so we're looking at a lot of different ways of reaching our audience," Kashkari said, plugging his digital operation.

Kashkari and his advisers have been upfront about the fact that win or lose, he is running, in part, to help repair the party's tarnished image among young people and minorities, according to CNN.

"I think my candidacy is viable in California, but I recognize this is not a model that, today, would play nationally," he said.

We're trying something in California, and I'm hoping that we can show that California can lead the country in a positive way by showing there's an interesting new profile of a young Republican leader," Kashkari was quoted as saying.
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