• Rep. Carlos Curbelo, a carbon tax supporter, lost to his Democratic opponent.
• Other GOP lawmakers on the Climate Solutions Caucus were also defeated.
• “[Y]et another sign that carbon taxes are politically toxic,” conservatives said.

Curbelo conceded to Democratic candidate Debbie Mucarsel-Powell on Tuesday night. Conservatives say the defeat of Curbelo, who’s called a GOP “leader” on global warming, shows how carbon taxes are still “politically toxic.”

“Curbelo could and should have been re-elected but he was talked into pushing an energy tax on all Americans — the so-called carbon tax — and as a result voters kicked him out of office,” Grover Norquist, president of Americans for Tax Reform (ATR), said in a statement.

Carbon Tax Curbelo Loses in Florida https://t.co/kdV9UqP5wt

— ATR (@taxreformer) November 7, 2018

Curbelo’s concession was just the tip of the iceberg when it came to defeats for Republicans in the Climate Solutions Caucus (CSC), a bipartisan group meant to put forward policies aimed at addressing global warming.

Caucus members defeated by their Democratic opponents included Barbara Comstock of Virginia, Scott Taylor of Virginia, Daniel Donovan of New York and Peter Roskam of Illinois. (RELATED: Reporters Press Trump About Global Warming, He Answers With Facts)

ATR joined other conservative groups in opposing Curbelo’s carbon tax legislation. ATR called Curbelo’s defeat “yet another sign that carbon taxes are politically toxic.”

For critics, Curbelo’s loss echoes the primary loss of former South Carolina GOP Rep. Bob Inglis in 2010. Rep. Trey Gowdy handily defeated Inglis in the primary, largely because of Inglis’ support for a carbon tax.

Curbelo introduced legislation in July to tax carbon dioxide emissions at $23 per ton, which would mostly go towards the Highway Trust Fund. Few elected Republicans support a carbon tax.

House Republicans, including Speaker of the House Paul Ryan and Rep. Carlos Curbelo (R-FL), celebrate at a news conference announcing the passage of the “Tax Cuts and Jobs Act” at the U.S. Capitol in Washington, U.S., November 16, 2017. REUTERS/Aaron P. Bernstein.

However, Curbelo’s support for a carbon tax only earned him attacks from the right and left. The free market American Energy Alliance bought attack ads against Curbelo, and environmental groups backed his opponent.

“He was savaged by groups including the Sierra Club and Tom Steyer’s NextGen America, which endorsed his Democratic opponent,” Steve Milloy, a Trump transition team member, said in an emailed statement.

Steve Valk, communications director of the Citizens’ Climate Lobby, said that while CSC Republicans took a beating Tuesday night, he was confident more on the right would join the caucus.

“Yes, the Republican ranks on the caucus have shrunk tonight, but at the start of the 115th Congress there were only 6 Republicans on the caucus and that number grew to 45,” Valk told The Daily Caller News Foundation.

Voters line up to vote in the U.S. midterm congressional and gubernatorial elections in Deerfield Beach, Florida, U.S. November 6, 2018. REUTERS/Joe Skipper.

Citizens’ Climate Lobby helped form the CSC in 2016. Curbelo and fellow Florida Rep. Ted Deutch, a Democrat, served as the caucus’s first chairmen. Curbelo’s defeat is a blow to his carbon tax bill, but Valk pointed out that two of the bill’s cosponsors won re-election.

GOP Reps. Brian Fitzpatrick of Pennsylvania and Francis Rooney of Florida won their races Tuesday night. Both Fitzpatrick and Rooney also voted against an anti-carbon tax resolution introduced by House Majority Whip Steve Scalise.

“With engagement and support from constituents in their districts, we think other Republicans will come on board to replace the ones not coming back,” Valk said.

Milloy, who publishes the website JunkScience.com, however, said Curbelo’s loss “demonstrates that selling out to radical environmentalist agenda did him no favors.”

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