Reid on immigration and energy: ‘I'm not going to be saying that one is more important than the other’

“I'm not going to be saying that one is more important than the other,” he added.

Sens. John KerryJohn Forbes KerryBringing the American election experience to Democratic Republic of the Congo Some Dems sizzle, others see their stock fall on road to 2020 The Hill's 12:30 Report MORE (D-Mass.), Lindsey GrahamLindsey Olin GrahamTop Louisiana health official rips Cassidy over ObamaCare repeal bill Senate Dems hold floor talk-a-thon against latest ObamaCare repeal bill Overnight Defense: Senate passes 0B defense bill | 3,000 US troops heading to Afghanistan | Two more Navy officials fired over ship collisions MORE (R-S.C.) and Joe Lieberman (I-Conn.) intend to unveil a broad energy and climate change measure on Monday, April 26. But Graham told reporters Thursday that they are still grappling with how to tackle greenhouse gas emissions from the transportation sector.

“The transportation sector is a problem. We are just dealing with that. I’m being honest with you – it’s a problem,” he said.

Graham confirmed that the trio have moved away from planning a so-called linked fee to address emissions from motor fuels.

Earlier discussions had involved a fee paid by petroleum companies – one “linked” to the price of carbon permits under the greenhouse gas limits applied to electric power plants.

“The linked fee proposal had its day and it’s not selling,” Graham said. “There are other ways to do this on the transportation sector and we are looking at those ways.”

Alexander Bolton contributed.