In the November election, the U.S. faces two futures. In one, the new president offers the country better prospects, relying on science, solid evidence and the willingness to learn from experience. She pushes policies that boost good jobs nationwide by embracing technology and clean energy. She supports education, public health and reproductive rights. She treats the climate crisis as the emergency it is and seeks to mitigate its catastrophic storms, fires and droughts.
In the other future, the new president endangers public health and safety and rejects evidence, preferring instead nonsensical conspiracy fantasies. He ignores the climate crisis in favor of more pollution. He requires that federal officials show personal loyalty to him rather than upholding U.S. laws. He fills positions in federal science and other agencies with unqualified ideologues. He goads people into hate and division, and he inspires extremists at state and local levels to pass laws that disrupt education and make it harder to earn a living.
Only one of these futures will improve the fate of this country and the world. That is why, for only the second time in our magazine’s 179-year history, the editors of Scientific American are endorsing a candidate for president. That person is Kamala Harris.
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Before making this endorsement, we evaluated Harris’s record as a U.S. senator and as vice president under Joe Biden, as well as policy proposals she’s made as a presidential candidate. Her opponent, Donald Trump, who was president from 2017 to 2021, also has a record—a disastrous one. Let’s compare.
Health Care
The Biden-Harris administration shored up the popular Affordable Care Act (ACA), giving more people access to health insurance through subsidies. During Harris’s September 10 debate with Trump, she said one of her goals as president would be to expand it. Scores of studies have shown that people with insurance stay healthier and live longer because they can afford to see doctors for preventive and acute care. Harris supports expansion of Medicaid, the U.S. health-care program for low-income people. States that have expanded this program have seen health gains in their populations, whereas states that continue to restrict eligibility have not. To pay for Medicare, the health insurance program primarily for older Americans, Harris supports a tax increase on people who earn $400,000 or more a year. And the Biden-Harris administration succeeded in passing the Inflation Reduction Act (IRA), which caps the costs of several expensive drugs, including insulin, for Medicare enrollees. Harris’s vice presidential pick, Tim Walz, signed into law a prohibition against excessive price hikes on generic drugs as governor of Minnesota.
When in office, Trump proposed cuts to Medicare and Medicaid (Congress, to its credit, refused to enact them.) He also pushed for a work requirement as a condition for Medicaid eligibility, making it harder for people to qualify for the program. As a candidate, both in 2016 and this year, he pledged to repeal the ACA, but it’s not clear what he would replace it with. When prodded during the September debate, he said, “I have concepts of a plan” but didn’t elaborate. Like Harris, however, he has voiced concern about drug prices, and in 2020 he signed an executive order designed to lower prices of drugs covered by Medicare.
The COVID pandemic has been the greatest test of the American health-care system in modern history. Harris was vice president of an administration that boosted widespread distribution of COVID vaccines and created a program for free mail-order COVID tests. Wastewater surveillance for viruses has improved, allowing public health officials to respond more quickly when levels are high. Bird flu now poses a new threat, highlighting the importance of the Biden-Harris administration’s Office of Pandemic Preparedness and Response Policy.
Trump touted his pandemic efforts during his first debate with Harris, but in 2020 he encouraged resistance to basic public health measures, spread misinformation about treatments and suggested injections of bleach could cure the disease. By the end of that year about 350,000 people in the U.S. had died of COVID; the current national total is well over a million. Trump and his staff had one great success: Operation Warp Speed, which developed effective COVID vaccines extremely quickly. Remarkably, however, Trump plans billion-dollar budget cuts to the Centers for Disease Control and Prevention and the National Institutes of Health, which started the COVID-vaccine research program. These steps are in line with the guidance of Project 2025, an extreme conservative blueprint for the next presidency drawn up by many former Trump staffers. He’s also talked about ending the Office of Pandemic Preparedness and Response Policy, calling it a pork project.
Reproductive Rights
Harris is a staunch supporter of reproductive rights. During the September debate, she spoke plainly about her desire to reinstate “the protections of Roe v. Wade” and added, “I think the American people believe that certain freedoms, in particular the freedom to make decisions about one’s own body, should not be made by the government.” She has vowed to improve access to abortion. She has defended the right to order the abortion pill mifepristone through the mail under authorization by the U.S. Food and Drug Administration, even as MAGA Republican state officials have tried—so far unsuccessfully—to revoke those rights. As a U.S. senator, she co-sponsored a package of bills to reduce rising rates of maternal mortality. In August, Trump said he would vote against a ballot measure expanding access to abortions in Florida, where he lives. The current Florida “heartbeat” law makes most abortions illegal after six weeks of pregnancy, before many people even know they are pregnant.
Trump appointed the conservative U.S. Supreme Court justices who overturned Roe v. Wade, removing the constitutional right to a basic health-care procedure. He spreads misinformation about abortion—during the September debate, he said some states support abortion into the ninth month and beyond, calling it “execution after birth.” No state allows this. He also refused to answer the question of whether he would veto a federal abortion ban, saying Congress would never approve such a ban in the first place. He made no mention of an executive order and praised the Supreme Court, three justices of which he placed, for sending abortion back to states to decide. This ruling led to a patchwork of laws and entire sections of the country where abortion is dangerously limited.
Gun Safety
The Biden-Harris administration closed the gun-show loophole, which had allowed people to buy guns without a license. The evidence is clear that easy access to guns in the U.S. has increased the risk of suicides, murder and firearm accidents. Harris supports a program that temporarily removes guns from people deemed dangerous by a court.
Trump promised the National Rifle Association that he would get rid of all Biden-Harris gun measures. Even after Trump was injured and a supporter was killed in an attempted assassination, the former president remained silent on gun safety. His running mate, J. D. Vance, said the increased number of school shootings was an unhappy “fact of life” and the solution was stronger school security.
Environment and Climate
Harris said pointedly during the September debate that climate change was real. She would continue the responsible leadership shown by Biden, who has undertaken the most substantial climate action of any president. The Biden-Harris administration restored U.S. membership in the Paris Agreement on coping with climate change. Harris’s election would continue IRA tax credits for clean energy, as well as regulations to reduce power-plant emissions and coal use. This approach puts the country on course to spend the authorized billions of dollars for renewable energy that should cut U.S. carbon emissions in half by 2030. The IRA also includes a commitment to broadening electric vehicle technology.
Trump has said climate change is a hoax, and he dodged the question “What would you do to fight climate change?” during the September debate. He pulled the U.S. out of the Paris Agreement. Under his direction the Environmental Protection Agency and other federal agencies abandoned more than 100 environmental policies and rules, many designed to ensure clean air and water, restrict the dangers of toxic chemicals and protect wildlife. He has also tried to revoke funding for satellite-based climate-research projects.
Technology
The Biden-Harris administration’s 2023 Executive Order on Safe, Secure and Trustworthy Development and Use of Artificial Intelligence requires that AI-based products be safe for consumers and national security. The CHIPS and Science Act invigorates the chipmaking industry and semiconductor research while growing the workforce. A new Trump administration would undo all of this work and quickly. Under the devious and divisive Project 2025 framework, technology safeguards on AI would be overturned. AI influences our criminal justice, labor and health-care systems. As is the rightful complaint now, there would be no knowing how these programs are developed, how they are tested or whether they even work.
The 2024 U.S. ballots are also about Congress and local officials—people who make decisions that affect our communities and families. Extremist state legislators in Ohio, for instance, have given politicians the right to revoke any rule from the state health department designed to limit the spread of contagious disease. Other states have passed similar measures. In education, many states now forbid lessons about racial bias. But research has shown such lessons reduce stereotypes and do not prompt schoolchildren to view one another negatively, regardless of their race. This is the kind of science MAGA politicians ignore, and such people do not deserve our votes.
At the top of the ballot, Harris does deserve our vote. She offers us a way forward lit by rationality and respect for all. Economically, the renewable-energy projects she supports will create new jobs in rural America. Her platform also increases tax deductions for new small businesses from $5,000 to $50,000, making it easier for them to turn a profit. Trump, a convicted felon who was also found liable of sexual abuse in a civil trial, offers a return to his dark fantasies and demagoguery, whether it’s denying the reality of climate change or the election results of 2020 that were confirmed by more than 60 court cases, including some that were overseen by judges whom he appointed.
One of two futures will materialize according to our choices in this election. Only one is a vote for reality and integrity. We urge you to vote for Kamala Harris.
A version of this article entitled “Vote in November for Science” was adapted for inclusion in the November 2024 issue of Scientific American.