"He's indefatigable, " says Edward (Ted) Harbert, president of the Comcast Entertainment Group.

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"We're challenging Waxman-Markey's cap-and-trade bill, not the need for a legislative response to climate change, " says Karen Harbert, head of the Chamber's Institute for 21st Century Energy.

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Zachary Turnage, a portfolio manager at Harbert Management Corp.

WSJ: Day Traders Steer Tesla Higher

"Some companies are being tactical, " suggests Harbert.

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