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 BluntLow-flying helicopters to measure radiation levels in DC before inauguration Bottom Line GOP vows quick confirmation of Trump's Supreme Court pick amid coronavirus turmoil 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 HeitkampThe Hill's Morning Report - Sponsored by JobsOhio - Showdown: Trump-Biden debate likely to be nasty Senate Democrats want to avoid Kavanaugh 2.0 Harris faces pivotal moment with Supreme Court battle MORE (N.D.) Claire McCaskillClaire Conner McCaskillBiden and Schumer face battles with left if Democrats win big Harris walks fine line on Barrett as election nears Fox's Bongino, MSNBC's McCaskill trade blows over Trump ride: 'You epic piece of garbage' MORE (Mo.) and Joe ManchinJoseph (Joe) ManchinDemocrats seem unlikely to move against Feinstein Push to expand Supreme Court faces Democratic buzzsaw Harris walks fine line on Barrett as election nears 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."