Four Senate Democrats broke ranks Thursday and voted to approve an amendment aimed at prohibiting a carbon tax. 

The Senate voted 58-42 on an amendment offered by Sen. Roy BluntRoy Dean BluntGOP debates tax cuts vs. tax reform Five tough decisions for the GOP on healthcare Lacking White House plan, Senate focuses on infrastructure MORE (R-Mo.) that would set up a deficit-neutral reserve fund to prohibit a federal tax or fee on carbon emissions from any entity that, directly or indirectly, is a source of the emissions. 

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Red-state Democrats Sens. Joe Donnelly (Ind.), Heidi HeitkampHeidi HeitkampTrump's Democratic tax dilemma It's time for McConnell to fight with Trump instead of against him The real litmus test is whether pro-life democrats vote for pro-life legislation MORE (N.D.) Claire McCaskillClaire McCaskillSenators push for possible FCC enforcement over Lifeline fraud Democrat senator: Trump has elevated Kim Jong-Un to the world stage It's time for McConnell to fight with Trump instead of against him MORE (Mo.) and Joe ManchinJoe ManchinOPINION | 5 ways Democrats can win back power in the states Trump's Democratic tax dilemma Manchin eyed as potential pick for Energy secretary: report MORE (W.Va.) voted with Republicans.
Blunt, ahead of the vote, suggested that the amendment was necessary to help protect Americans from higher utility bills and "send a clear message" to President Obama.
 
"This vote is important to send a clear message to the administration that Americans simply can't afford to pay higher utility bills because of bad energy policies," he said. 
 
 
"When you put a price on carbon it works," she said. "If you look at my state, we are creating jobs in clean energy, we're balancing our budget better than we ever have before. ... So I don't know why on earth we would say 'no' to something that leads to prosperity."