"Colbert Busch opens lead on Sanford"
Politico April 22
http://www.politico.com/story/2013/04/colbert-busch-opens-lead-on-sanford-90449.html?hp=l8

"EPA proposes rules to curb power-plant waste in waterways"
Wash Post April 20 
http://www.washingtonpost.com/politics/epa-proposes-rules-to-curb-power-plant-waste-in-waterways/2013/04/19/a99aaad6-a961-11e2-b029-8fb7e977ef71_story.html