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 BluntSenate plots to avoid fall shutdown brawl ‘Contingency’ spending in 3B budget deal comes under fire GOP braces for Trump's emergency declaration 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 HeitkampMary (Heidi) Kathryn HeitkampOvernight Energy: Trump taps ex-oil lobbyist Bernhardt to lead Interior | Bernhardt slams Obama officials for agency's ethics issues | Head of major green group steps down Trump picks ex-oil lobbyist David Bernhardt for Interior secretary On The Money: Shutdown Day 27 | Trump fires back at Pelosi by canceling her foreign travel | Dems blast 'petty' move | Trump also cancels delegation to Davos | House votes to disapprove of Trump lifting Russia sanction MORE (N.D.) Claire McCaskillClaire Conner McCaskillPoll: 33% of Kentucky voters approve of McConnell McCaskill: Lindsey Graham 'has lost his mind' Trey Gowdy joins Fox News as a contributor MORE (Mo.) and Joe ManchinJoseph (Joe) ManchinOvernight Energy: Trump ends talks with California on car emissions | Dems face tough vote on Green New Deal | Climate PAC backing Inslee in possible 2020 run Dems face tough vote on Green New Deal Gabbard cites ‘concerns’ about ‘vagueness’ of Green New Deal 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. 
 
But, Sen. Barbara BoxerBarbara Levy BoxerHispanic civil rights icon endorses Harris for president California AG Becerra included in Bloomberg 50 list Climate debate comes full circle MORE (D-Calif.) suggested ahead of the vote that putting "a price" on carbon could lead to a better economy. 
 
"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."