- Hillary Clinton has embraced Barack Obama's legacy and talks about global warming on the stump
- Bernie Sanders continues to tout his early opposition to the Keystone pipeline
- Democratic mega-donor Tom Steyer said he wants to see more from Clinton before making an endorsement
(CNN)Hillary Clinton has embraced Barack Obama's legacy. Her campaign chairman is a former White House adviser credited for pushing through pro-environmental regulations. And she talks about the need to act on global warming.