Lisa Murkowski actually said...

additional layers of bureaucratic regulation that may be duplicative, inefficient, or counterproductive should be taken off the table.

I think that, at this point, Congress has little choice but to do just that.

if those EPA regulations don't go away, if EPA acts, what incentive is there for us to continue to pursue a climate policy, from the congres...

I think a carbon tax is--gives you more certainty on the price.