Washington (CNN) Sen. Dianne Feinstein says Israeli Prime Minister Benjamin Netanyahu is "arrogant" for asserting that he speaks for all Jews -- and that he doesn't speak for her.

The California Democrat's comments to CNN's Dana Bash on Sunday's "State of the Union" come days ahead of Netanyahu's high-profile speech to Congress, in which he's set to lobby against a deal to thwart Iran's nuclear ambitions.

"My responsibility is to worry not only about the state of Israel, but also the future of the Jewish people," Netanyahu said Saturday in Jerusalem. "And for that reason, we are strongly opposed to the agreement being formulated between the world powers and Iran that could endanger Israel's very existence."

Feinstein said she'll attend Netanyahu's speech -- which President Barack Obama's administration has heavily criticized. But she wasn't happy with those comments.

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