(CNN)- President Barack Obama said Tuesday that by 2035, 80% of the nation's electricity should come from clean energy sources.
"I challenge you to join me in setting a new goal," Obama said in remarks prepared for delivery in his State of the Union address. "Some folks want wind and solar. Others want nuclear, clean coal, and natural gas. To meet this goal, we will need them all - and I urge Democrats and Republicans to work together to make it happen."