Well, that "rule of law" thing...

It's really more of a guideline.

Democrats are vowing this fund will be tightly crafted and used only for oil-spill payments. But only last week Democrats on Capitol Hill wanted to siphon money out of the Oil Spill Liability Trust Fund—established in 1986 and funded by oil taxes to help clean-up spills—to pay for their extension of unemployment benefits. The history of such government funds is that they are always raided for politically favored purposes.