Morning Movers: CVS, Standard Chartered, Pfizer

Aug. 7 (Bloomberg) -- Bloomberg's Tom Keene, Sara Eisen and Scarlet Fu highlight the news you need to follow for today's trading. They speak on Bloomberg Television's "Bloomberg Surveillance."
Will Alexis Tsipras Resign as Greek Prime Minister?
42:30 - Bloomberg’s Tom Keene and Vonnie Quinn examine viewer responses to the Twitter question of the day. They speak on “Bloomberg Surveillance.” (Source: Bloomberg)
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