This is all pretty vague.
Can you get more specific on what you think Bush stopped trying to do, or has never tried, to increase energy supplies in this country?
Go to the White House website and you can start to get some idea of what's been tried, what hasn't, and what got blocked.
Did he sell these things as hard as they needed to be sold? On that, I'll agree that he didn't. But it's not like anybody else would have.
Rest assured that no Democrat is going to open up new oil fields, shale fields, or anything else that involves digging a hole in the ground somewhere. No Democrat is going to push nuclear power like it needs to be pushed.