Hill: Hillary Clinton may find herself in time out with affluent Democratic environmentalists after staying mum on the Keystone XL oil pipeline.
Clinton wouldn't say whether she supported or opposed the controversial $5.4 billion project when asked a direct question about it earlier this month at an event in Vancouver.
"Shes kind of a closed book on the environment, said Guy Saperstein, an Oakland-based venture capitalist and former president of the San Francisco-based Sierra Club Foundation told...