David Walker on U.S. Debt, Election

Aug. 30 (Bloomberg) -- David Walker, chief executive officer of Comeback America Initiative and a former U.S. comptroller general, talks about the U.S. economy and deficit. Walker speaks with Mark Crumpton on Bloomberg Television's "Bottom Line." (Source: Bloomberg)
Obama: No Challenge Greater Threat Than Climate Change
41:32 - President Barack Obama issues a sweeping set of regulations to cut U.S. power-plant emissions, the biggest carbon-pollution control effort by the world’s biggest economy that pressures other countries heading into global climate talks in Paris later this year. (Source: Bloomberg)
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