The One-Sentence Version
Every landmark environmental law in the United States was passed with overwhelming bipartisan support and most were signed by Republican presidents, but a shift driven by fossil fuel industry spending and strategic messaging transformed environmental protection from a shared American value into a partisan divide, and the voting records, platform language, and policy actions of each party now tell sharply different stories.
By the Numbers
The Laws (how they were passed)
| Law | Year | House Vote | Senate Vote | President | Party |
|---|---|---|---|---|---|
| Wilderness Act | 1964 | 373-1 | 73-12 | Johnson | D |
| National Environmental Policy Act | 1970 | 372-15 | Voice vote | Nixon | R |
| Clean Air Act | 1970 | 375-1 | 73-0 | Nixon | R |
| EPA created | 1970 | Executive reorganization | — | Nixon | R |
| Clean Water Act | 1972 | 366-11 | 74-0 | Nixon (vetoed; overridden) | R |
| Endangered Species Act | 1973 | 355-4 | 92-0 | Nixon | R |
| Clean Air Act Amendments | 1990 | 401-21 | 89-11 | G.H.W. Bush | R |
| Great American Outdoors Act | 2020 | 310-107 | 73-25 | Trump | R |
| Inflation Reduction Act ($369B climate) | 2022 | 220-207 | 51-50 | Biden | D |
The Shift (how they vote now)
| What | Number | Source |
|---|---|---|
| Average Democratic LCV environmental score (2024) | 93% | [7] |
| Average Republican LCV environmental score (2024) | 3% | [7] |
| Republican votes for the Inflation Reduction Act (2022) | 0 | [6] |
| Mentions of “climate change,” “environment,” “pollution,” “clean air,” or “clean water” in the 2024 GOP platform | 0 | [8] |
| Republicans who believed global warming is human-caused (2003) | 52% | [9] |
| Republicans who believed global warming is human-caused (2026) | 28% | [9] |
| Koch foundation spending on groups attacking climate science (1997-2018) | $145.5 million | [10] |
The Record (what each party did with power)
| What | Number | Source |
|---|---|---|
| Endangered species listed under Clinton (8 years) | ~523 | [11] |
| Endangered species listed under Obama (8 years) | ~360 | [11] |
| Endangered species listed under Trump, 1st term (4 years) | 22 | [11] |
| Endangered species listed under Trump, 2nd term (to date) | 0 | [11] |
| U.S. oil production record (set under Biden, August 2024) | 13.4 million barrels/day | [12] |
| Environmental rollbacks under current Trump administration | 420+ | [13] |
| National monuments created by Obama (most of any president) | 29 | [14] |
| Bears Ears monument reduction under Trump, 1st term | 85% | [15] |
| Western voters (including 69% of MAGA voters) who oppose reducing federal land agency funding | 65% | [16] |
The Bipartisan Era
Republicans built the system
This is not a disputed claim. It is the historical record.
Richard Nixon created the Environmental Protection Agency on December 2, 1970.[1] He signed the Clean Air Act (House: 375-1),[2] the National Environmental Policy Act (House: 372-15),[2] and the Endangered Species Act (House: 355-4, Senate: 92-0).[3] Not one senator spoke against the ESA on the floor.[3]
Nixon also vetoed the Clean Water Act. Congress overrode him with bipartisan supermajorities: 52-12 in the Senate (with 17 Republican yes votes) and 247-23 in the House (with 96 Republican yes votes).[2]
Before Nixon, Theodore Roosevelt created the National Forest System, established 5 national parks, 18 national monuments, and 51 federal bird reservations. He set aside approximately 230 million acres for public protection.[14]
George H.W. Bush signed the Clean Air Act Amendments of 1990 (House: 401-21, Senate: 89-11), which created the cap-and-trade program for acid rain that is widely regarded as one of the most successful environmental regulations in history.[4]
John McCain co-sponsored the Climate Stewardship Act with Joe Lieberman in 2003, the first Senate vote on comprehensive climate legislation since 1998. He ran for president in 2008 on a platform that included a cap-and-trade system targeting 60% emissions reduction by 2050.[17]
Both parties’ platforms included environmental protection language through the 1990s.
The laws weren’t partisan. They were American.
The Clean Air Act passed the House 375-1. The Endangered Species Act passed 355-4 in the House and 92-0 in the Senate. The Wilderness Act passed 373-1. These weren’t narrow partisan victories. They were expressions of a national consensus that clean air, clean water, and the survival of American wildlife were values worth protecting.
That consensus no longer exists.
What Changed
The timeline
Late 1970s: The Sagebrush Rebellion. Western ranchers, miners, and loggers pushed back against federal land management regulations. Ronald Reagan embraced the movement, appointing James Watt as Interior Secretary. Watt sought to open federal lands to drilling, mining, and logging. He was eventually forced to resign after a series of controversies.[18]
1994: The Gingrich Revolution. Newt Gingrich’s “Contract with America” included provisions to weaken environmental regulations, including a moratorium on new EPA rules. The shift accelerated as the Republican Party moved toward a more explicitly anti-regulatory identity.[18]
2002: The Luntz Memo. Republican strategist Frank Luntz wrote a memo to Republican leaders titled “The Environment: A Cleaner, Safer, Healthier America.” His advice:[19]
- “The scientific debate is closing [against us] but not yet closed.”
- “There is still a window of opportunity to challenge the science.”
- “You need to continue to make the lack of scientific certainty a primary issue in the debate.”
- He recommended using “climate change” instead of “global warming” because it sounded “less frightening.”[19]
2003-present: Fossil fuel industry spending. Koch Family Foundations spent $145.5 million between 1997 and 2018 funding 90 organizations that attacked climate science and policy, according to IRS Form 990 filings compiled by Greenpeace. From 2005 to 2011 alone, the Koch network outspent ExxonMobil more than 3-to-1 ($43.1 million vs. $12.3 million) on the same network of groups.[10]
The numbers tell the story
Voter opinion shifted: In 2003, 52% of Republicans said global warming was caused by human activities. By 2026, that number had fallen to 28%.[9] The share of Republicans who worry about global warming hit 6% in 2026, an all-time low.[9]
Voting records diverged: The League of Conservation Voters scores every member of Congress on environmental votes. In 2024, Democrats averaged 93%. Republicans averaged 3%.[7]
Platform language disappeared: The 2024 Republican Party platform, at 5,398 words, contains zero mentions of “climate change,” “the environment,” “pollution,” “clean air,” or “clean water.”[8]
The Inflation Reduction Act, the largest climate investment in American history ($369 billion), received zero Republican votes in either chamber of Congress.[6]
The Record: Public Lands
Who protected them
Presidents of both parties have used the Antiquities Act to create national monuments. The top five by number of monuments created:[14]
| President | Party | Monuments Created |
|---|---|---|
| Obama | D | 29 |
| Clinton | D | 19 |
| Theodore Roosevelt | R | 18 |
| Jimmy Carter | D | 15 |
| Calvin Coolidge | R | 13 |
Trump signed the Great American Outdoors Act in 2020 (Senate: 73-25, House: 310-107), permanently funding the Land and Water Conservation Fund at $900 million per year and providing $9.5 billion for national park maintenance. This is a genuine bipartisan achievement and deserves recognition.[5]
Who reduced them
In December 2017, Trump reduced Bears Ears National Monument by 85% (from 1.35 million acres to approximately 228,000 acres) and Grand Staircase-Escalante by nearly 47% (from 1.87 million acres to about 1 million acres). These were the largest reductions of national monument protections in American history.[15] Biden restored both to their original boundaries in October 2021.[15]
Who wants to sell them
The movement to transfer federal public lands to state governments has been led almost exclusively by Republican officials. Utah state legislator Ken Ivory founded the American Lands Council and sponsored the Transfer of Public Lands Act (2012). At least five Republican-led states have passed transfer resolutions or legislation.[16]
Constitutional scholars have called the transfer legally dubious. And the historical record of state land management suggests what would happen: states have historically sold off more than 50% of the land originally granted to them by the federal government.[16]
What do the people who actually live near these lands think? The Colorado College Conservation in the West Poll (2025) found that 65% of Western voters oppose reducing funding for federal land agencies. That includes 69% of self-identified MAGA voters.[16]
In the current administration, the Forest Service headquarters has been relocated to Salt Lake City (the state currently suing to seize 18.5 million acres of federal land), all 10 regional offices have been shuttered, and over 50 research facilities across 31 states have been ordered consolidated. A logging executive was installed as Forest Service chief. The Clinton-era Roadless Rule, which protected 59 million acres of national forest from logging, has been proposed for repeal.[13]
The Record: Wildlife and Endangered Species
The Endangered Species Act has prevented the extinction of 99% of listed species since 1973.[3] The number of species a president lists reflects how actively the administration uses the law.
| President | Party | Species Listed | Approximate Rate |
|---|---|---|---|
| Clinton | D | ~523 | 65/year |
| Obama | D | ~360 | 45/year |
| Biden | D | ~62 | 15/year |
| G.W. Bush | R | ~60 | 8/year |
| Trump (1st term) | R | 22 | 5.5/year |
| Trump (2nd term, to date) | R | 0 | 0/year |
In the current administration: gray wolves have been delisted nationwide, grizzly bears have been delisted in the Greater Yellowstone ecosystem, migratory bird protections have been stripped, 32 bills have been introduced to weaken the ESA, and 1,817 Fish and Wildlife Service staff have been fired.[13]
The Record: Air, Water, and Health
The EPA has been cut to its lowest staffing level in 40 years (12,849 employees, down 24%). Its Office of Research and Development, the entire scientific arm that produces the research behind air quality and water safety standards, has been dissolved. The proposed FY2027 budget would cut the EPA by 65%.[13]
The Endangerment Finding, the 2009 scientific determination that greenhouse gases endanger public health, was revoked in February 2026. This eliminates the legal basis for all federal climate regulation: tailpipe emission standards, power plant rules, fuel efficiency standards, and greenhouse gas reporting. Eighteen states have filed lawsuits.[13]
PFAS (“forever chemicals”) drinking water standards, established in 2024 after more than a decade of development, have been delayed by two years and partially rescinded. Roughly 100 million Americans have PFAS in their drinking water. PFAS are linked to kidney cancer, testicular cancer, thyroid disease, and immune suppression.[13]
Lead pipe replacement funding, appropriated by Congress, remained undistributed as of late 2025. An estimated 4 to 12.8 million lead service lines remain in use. There is no safe level of lead exposure, and lead causes irreversible brain damage in children.[13]
Clean Water Act protections have been stripped from up to 60% of U.S. wetlands and millions of miles of streams. Wetlands provide an estimated $23.2 billion per year in flood control services alone.[13]
The Complications
This article would not be honest without acknowledging the contradictions on both sides.
Biden set the all-time U.S. oil production record: 13.4 million barrels per day in August 2024, surpassing Trump’s record of 12.9 million. Biden also approved more drilling permits on federal land than Trump did in his first term.[12] He rejoined the Paris Climate Agreement, signed the $369 billion Inflation Reduction Act, and restored Bears Ears and Grand Staircase. But he also greenlit the Willow oil project in Alaska.
Trump signed the Great American Outdoors Act, one of the most significant conservation laws in decades, permanently funding the LWCF at $900 million per year.[5] He also withdrew from the Paris Agreement, rolled back over 100 environmental regulations in his first term, and his second term has produced over 420 tracked rollbacks.[13]
Joe Manchin, a Democrat from West Virginia, had an LCV score around 43%, the lowest in his caucus, and blocked climate legislation for years before ultimately negotiating the Inflation Reduction Act.[7]
Some Republican voters support environmental protection even when their leaders don’t. Sixty-nine percent of MAGA voters in the West oppose cutting federal land agency funding.[16] But Republican members of Congress average a 3% LCV score.[7]
Environmental regulations do have economic costs. Compliance is expensive. Some regulations have been poorly designed or overly burdensome. Acknowledging this does not invalidate the laws any more than acknowledging that speed limits inconvenience drivers invalidates traffic safety.
The Counter-Arguments
”Environmental regulations kill jobs and hurt the economy”
Some regulations impose costs on specific industries. But the Clean Air Act alone is estimated by the EPA to have prevented over 200,000 premature deaths per year and produced benefits exceeding costs by a ratio of more than 30 to 1. Wetlands that lost Clean Water Act protection provide $23.2 billion per year in flood control. The costs of inaction (health care, disaster recovery, species collapse) are economic costs too.[13]
“Both parties are the same on the environment”
The LCV scores: Democrats 93%, Republicans 3%.[7] The Inflation Reduction Act: 220 Democratic yes votes, zero Republican votes.[6] The 2024 GOP platform: zero mentions of climate, environment, or pollution.[8] Both parties have contradictions. They are not the same.
”Republicans created the EPA, so they’re the environmental party”
This is historically true. Nixon created the EPA. He signed the Clean Air Act, the ESA, and NEPA. Bush signed the 1990 Clean Air Act amendments. Trump signed the Great American Outdoors Act. The question this article addresses is what happened between then and now, when the party’s LCV score dropped to 3% and its platform stopped mentioning the environment entirely.
”Democrats are hypocrites because they still drill for oil”
Biden set oil production records while also signing the largest climate investment in history. This is a real tension. Energy policy involves balancing current economic needs against long-term environmental goals. The difference between the parties is not that one drills and one doesn’t. It’s that one is investing in a transition while the other has removed the legal basis for climate regulation, proposed cutting the EPA by 65%, and revoked the scientific finding that greenhouse gases endanger health.
Where Things Stand Now
The EPA is at a 40-year staffing low. The Endangerment Finding has been revoked, eliminating the legal foundation for all federal climate regulation. Over 420 environmental rollbacks have been documented in the current administration. Zero endangered species have been listed. The Forest Service’s 121-year research infrastructure has been dismantled. PFAS drinking water standards have been delayed. Wetland protections have been stripped.
Eighteen states are suing over the Endangerment Finding. Courts have blocked some rollbacks. But the institutional damage from staff losses, budget cuts, and regulatory reversals is difficult to undo.
The Clean Air Act passed 375-1. The Endangered Species Act passed 355-4. The LCV scores in 2024 were 93% to 3%. What happened between those two sets of numbers is documented, sourced, and not in dispute. What voters do with that information is up to them.
Sources
1. EPA: The Origins of EPA (December 2, 1970)
2. FarmDoc Daily / University of Illinois: Legislative History of Major Environmental Laws
3. Congress.gov: Endangered Species Act (S.1983, 93rd Congress, 1973)
4. EPA: Clean Air Act Amendments of 1990
5. Congress.gov: Great American Outdoors Act (S.3422, 116th Congress, 2020)
6. Congress.gov: Inflation Reduction Act (H.R.5376, 117th Congress, 2022)
7. League of Conservation Voters: 2024 National Environmental Scorecard
8. E&E News/Politico: Republican Platform Heavy on Energy, Silent on Climate (July 2024)
9. Gallup: Climate Change Concern Near High Point (April 2026)
10. Greenpeace USA: Koch Industries Climate Denial Funding (IRS 990 filings, 1997-2018)
11. Oregon Capital Chronicle: Record-Low Species Protections Under Trump (April 2026)
12. EIA: U.S. Crude Oil Production Sets Record (August 2024)
13. NRDC: Environmental Rollback Tracker
14. NPCA: Which Presidents Have Created the Most National Monuments?
15. NPR: Biden Restores Protections for Bears Ears Monument (October 2021)
16. Colorado College: Conservation in the West Poll (2025)
17. Congress.gov: Climate Stewardship Act (S.139, 108th Congress, 2003)
18. Turner & Isenberg: “The Republican Reversal” (Harvard University Press, 2018)