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How Elon Musk's tweets might be affecting the latest price targets for Tesla

Wedbush and Citi both lowered their price targets for Tesla in the past week on top of Morgan Stanley publishing a new bear case price target for the stock. The slew of bad news for Tesla has some investors wondering how much CEO Elon Musk's tweeting has to do with the downgrades. Jeff Sonnenfeld, senior associate dean for leadership studies at the Yale School of Management, and Erin Gibbs, equity chief investment officer at S&P Global Market Intelligence, join "Squawk Box" to discuss.