So President Donald Trump said during his speech to Congress yesterday, March 4, 2025, but he spoke falsely. Unfortunately, falsehoods, distortions, twisted arguments, and outright lies filled Trump’s speech. Politicians tell lies: who would have thought? The real question is, what makes these lies persuasive?“Believe it or not, government databases list 4.7 million Social Security members from people aged 100 to 109 years old. It lists 3.6 million people from ages 110 to 119. I don’t know any of them. I know some people that are rather elderly, but not quite that elderly…. But a lot of money is paid out to people, because it just keeps getting paid and paid.”
There is a rhetorical reason that massive chains of falsehoods persuade people. The RAND Corporation calls this technique the “Firehose of Falsehoods.” The answer lies in the numbers. A basic propaganda technique is to unload, not one lie, but a vast number of outrageous lies. It’s not a single lie, it’s a firehose. Tell one lie, and the audience might catch you. Spray out enough lies and, well, that is a different story A barrage of arrogant lies can persuade people when a single mild fib does not. To echo the old slogan, quantity has a quality of its own.
Trump's Speech of January 6, 2021: A "Firehose of Falsehood"
There’s also a psychological reason that massive chains of falsehood persuade people. The psychological theory called the Elaboration Likelihood Model states that people who lack the time, attention, or ability to check facts will tend to believe things that they have heard repeatedly.
So, look at a few of Trump’s outrageous statements.
What about Social Security?
Whenever someone says, “believe it or not,” as Trump did, my Spidey sense tingles away. Trump expounded further:
Now, Wired magazine notes that the problem in the Social Security spreadsheet results, not from real data, but from a programming glitch. The chart was created by an obsolete programming language called COBOL that failed to read death dates for older Social Security recipients. Furthermore, Lee Dudek, the new Acting Commissioner of Social Security, notes that “These individuals are not necessarily receiving benefits.”
Analyzing the problem in yet more detail, FactCheck.org notes that, although some ineligible people do receive Social Security benefits, the number is nowhere near as great as what Trump claimed. Social Security’s data shows that fewer than 90,000 actual Social Security recipients are 100 years old or older. That sounds about right. So, Trump was just carelessly wrong. Since his claims had been publicly refuted weeks earlier, he has no excuse.
Elon Musk, DOGE, and the Art of Squirming
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There’s also a psychological reason that massive chains of falsehood persuade people. The psychological theory called the Elaboration Likelihood Model states that people who lack the time, attention, or ability to check facts will tend to believe things that they have heard repeatedly.
So, look at a few of Trump’s outrageous statements.
What about Social Security?
Whenever someone says, “believe it or not,” as Trump did, my Spidey sense tingles away. Trump expounded further:
“And it really hurts Social Security and hurts our country, 1.3 million people from ages 150 to 159 and over 130,000 people, according to the Social Security databases, are age over 160 years old.”
Now, Wired magazine notes that the problem in the Social Security spreadsheet results, not from real data, but from a programming glitch. The chart was created by an obsolete programming language called COBOL that failed to read death dates for older Social Security recipients. Furthermore, Lee Dudek, the new Acting Commissioner of Social Security, notes that “These individuals are not necessarily receiving benefits.”
Analyzing the problem in yet more detail, FactCheck.org notes that, although some ineligible people do receive Social Security benefits, the number is nowhere near as great as what Trump claimed. Social Security’s data shows that fewer than 90,000 actual Social Security recipients are 100 years old or older. That sounds about right. So, Trump was just carelessly wrong. Since his claims had been publicly refuted weeks earlier, he has no excuse.
But Trump told other lies.
A Mandate? I Think Not
Asserting his power, Trump claimed that:
ABC News’ fact checkers note, however, that: “Trump's margins of victory — both in raw votes and in percentages — were small by historical standards.” In fact, in the final election results, Trump received 49.9% of the popular vote, against 48.3% for his opponent, Kamala Harris. Trump won, yes, but a popular vote advantage of only 1.6% hardly counts as a mandate.
Ended a Non-Existent Mandate? I Think Not
Well, the lies poured on. Trump claimed that he saved the auto industry by ending an “electric vehicle mandate:”
Oddly, as ABC’s fact checkers note, the Biden administration did not impose an electric vehicle mandate. The administration had signed off on stricter automobile emission standards, which Trump did, in fact, revoke. But an electric vehicle mandate? Didn’t exist.
An Autism Epidemic?
Is there an autism epidemic? Vaccine skeptics and vegetarians cite a supposed autism epidemic to support their views of clean living. Trump’s unqualified Secretary of Health and Human Services, Robert F. Kennedy, Jr., and Trump himself, have repeatedly harped on that.
So, it was no surprise in yesterday’s speech when Trump said:
However, a research team led by Sebastian Lundström published this in the Journal of Child Psychology and Psychiatry in 2022 said:
Similarly, Tony Charman finds in the prestigious journal The Lancet Psychiatry, 2025, that:
In other words, the supposed increase in autism seems in large part to reflect changing diagnostic criteria, plus more interest by mental health professionals when they work with clients.
Lies and More Lies?
Tell one lie, and you probably persuade no one. Tell a hundred lies? Well, that’s different. Suppose that Trump tells ten lies in a row. One after the other. Let us suppose that most of the lies are either invented out of thin air, or sucked from the dim recesses of Fox News or Elon Musk’s so-called Department of Government Efficiency’s dubious website. Lies are easy to produce, since they can arise from nothing, but they are often troublesome to refute. Any debater knows that it is hard to prove a negative.
A Mandate? I Think Not
Asserting his power, Trump claimed that:
“The presidential election of November 5th was a mandate like has not been seen in many decades.”
ABC News’ fact checkers note, however, that: “Trump's margins of victory — both in raw votes and in percentages — were small by historical standards.” In fact, in the final election results, Trump received 49.9% of the popular vote, against 48.3% for his opponent, Kamala Harris. Trump won, yes, but a popular vote advantage of only 1.6% hardly counts as a mandate.
Ended a Non-Existent Mandate? I Think Not
Well, the lies poured on. Trump claimed that he saved the auto industry by ending an “electric vehicle mandate:”
“We ended the last administration’s insane electric vehicle mandate, saving our auto workers and companies from economic destruction.”
Oddly, as ABC’s fact checkers note, the Biden administration did not impose an electric vehicle mandate. The administration had signed off on stricter automobile emission standards, which Trump did, in fact, revoke. But an electric vehicle mandate? Didn’t exist.
An Autism Epidemic?
Is there an autism epidemic? Vaccine skeptics and vegetarians cite a supposed autism epidemic to support their views of clean living. Trump’s unqualified Secretary of Health and Human Services, Robert F. Kennedy, Jr., and Trump himself, have repeatedly harped on that.
So, it was no surprise in yesterday’s speech when Trump said:
“Not long ago — and you can’t even believe these numbers — one in 10,000 children had autism. One in 10,000, and now it’s one in 36. There’s something wrong. One in 36. Think of that.”
However, a research team led by Sebastian Lundström published this in the Journal of Child Psychology and Psychiatry in 2022 said:
“Much – or even most– prevalence increase seems to reflect changes in diagnostic practice and ascertainment.”
Similarly, Tony Charman finds in the prestigious journal The Lancet Psychiatry, 2025, that:
“The authors argue this finding does not indicate rising prevalence per se but changes in the GBD methodology, specifically the exclusion of studies relying on passive case finding (registries or administrative estimates), which underestimate prevalence. The authors found no evidence of an increase in prevalence across a 15-year time window.”
In other words, the supposed increase in autism seems in large part to reflect changing diagnostic criteria, plus more interest by mental health professionals when they work with clients.
Lies and More Lies?
Tell one lie, and you probably persuade no one. Tell a hundred lies? Well, that’s different. Suppose that Trump tells ten lies in a row. One after the other. Let us suppose that most of the lies are either invented out of thin air, or sucked from the dim recesses of Fox News or Elon Musk’s so-called Department of Government Efficiency’s dubious website. Lies are easy to produce, since they can arise from nothing, but they are often troublesome to refute. Any debater knows that it is hard to prove a negative.
ABC News’ fact checkers reviewed 12 of Trump’s claims, finding only one to be true, while marking the others with labels like “false,” “misleading, or “lacks context.” FactCheck.org, the premier fact-checking website, studied 12 of Trump’s claims, including some that were different from those that ABC examined, finding all 12 to be dubious. For example, they noted that Trump falsely claimed that Panama had turned control of the Panama Canal over to China. Trump lied about alleged savings from the Department of Government Efficiency and fentanyl shipments from Canada—among other falsehoods.
Now, think about it. After all, how many readers are going to study 12 (or more) seemingly nit-picking fact checks? Or look at several fact checkers? Or examine scientific and historical literature for themselves to verify every throwaway claim that Trump blustered out? Even the fact checkers got exhausted, which is why different fact checking websites covered different claims. It takes time; it takes effort. Isn’t it easier just to dismiss the fact checks as “liberal propaganda” or, maybe, “all politicians tell lies, who cares?”
And that is how the Firehose of Falsehoods overwhelms our critical processes.
Unfortunately, a barrage of lies overwhelms people’s critical capacities. I spent hours just looking up the fact checks that I cited above, and I hardly scratched the surface of Trump’s onslaught. If I didn’t want to write this blog post, would I spend that much time on it? Not likely.
For it was not just one lie. It was a firehose. Suppose someone lies to you and you check them. Fine. But what if someone pumps out dozens of lies? Some of them will slip through. Keep in mind, of course, that many of Trump’s falsehoods have long circulated on Fox News, talk radio, and social media. The Firehose of Falsehoods floods our search for truth. Quantity has a quality of its own.
I have posted previously about the Elaboration Likelihood Model of persuasion, developed by psychologists Richard E. Petty and John T. Cacioppo. Their theory claims how people process and respond to persuasive messages. They show that when people use the Central Route to process a persuasive message, they gather information and think critically. However, the Central Route takes time. It takes effort. It often requires skills that not everyone has.
The alternative is the Peripheral Route. When people lack the time, ambition, or skill to use the Central Route, they might look at the source’s attractiveness or perceived expertise, or simply the frequency with which messages are received, or other trivial criteria. That is where Trump’s cascade of lies works. People who use the Central Route will quickly reject Trump’s ludicrous claims. People who use the Peripheral Route might be impressed by Trump’s self-confidence, charismatic speaking style, and, most of all, the relentless firehose of misinformation. At that point, sadly, quantity takes on a quality of its own, and, audiences can get overwhelmed.
Conclusion
Trump’s rhetoric could never persuade wise, careful listeners, but wise, careful listeners are not his audience. To be fair, no one has the time or ability to study and verify every single persuasive message. Trump obviously knows that. By presenting a deluge of obvious, easily discredited lies, Trump carried his listeners on a roller coaster ride of bluster, suspicion, paranoia, and absurdity. As a master of those dark arts, Trump follows the path of the Big Lie. As Goebbels demonstrated in the previous century, if you want to tell lies, go big.
Now, think about it. After all, how many readers are going to study 12 (or more) seemingly nit-picking fact checks? Or look at several fact checkers? Or examine scientific and historical literature for themselves to verify every throwaway claim that Trump blustered out? Even the fact checkers got exhausted, which is why different fact checking websites covered different claims. It takes time; it takes effort. Isn’t it easier just to dismiss the fact checks as “liberal propaganda” or, maybe, “all politicians tell lies, who cares?”
And that is how the Firehose of Falsehoods overwhelms our critical processes.
Unfortunately, a barrage of lies overwhelms people’s critical capacities. I spent hours just looking up the fact checks that I cited above, and I hardly scratched the surface of Trump’s onslaught. If I didn’t want to write this blog post, would I spend that much time on it? Not likely.
For it was not just one lie. It was a firehose. Suppose someone lies to you and you check them. Fine. But what if someone pumps out dozens of lies? Some of them will slip through. Keep in mind, of course, that many of Trump’s falsehoods have long circulated on Fox News, talk radio, and social media. The Firehose of Falsehoods floods our search for truth. Quantity has a quality of its own.
I have posted previously about the Elaboration Likelihood Model of persuasion, developed by psychologists Richard E. Petty and John T. Cacioppo. Their theory claims how people process and respond to persuasive messages. They show that when people use the Central Route to process a persuasive message, they gather information and think critically. However, the Central Route takes time. It takes effort. It often requires skills that not everyone has.
The alternative is the Peripheral Route. When people lack the time, ambition, or skill to use the Central Route, they might look at the source’s attractiveness or perceived expertise, or simply the frequency with which messages are received, or other trivial criteria. That is where Trump’s cascade of lies works. People who use the Central Route will quickly reject Trump’s ludicrous claims. People who use the Peripheral Route might be impressed by Trump’s self-confidence, charismatic speaking style, and, most of all, the relentless firehose of misinformation. At that point, sadly, quantity takes on a quality of its own, and, audiences can get overwhelmed.
Conclusion
Trump’s rhetoric could never persuade wise, careful listeners, but wise, careful listeners are not his audience. To be fair, no one has the time or ability to study and verify every single persuasive message. Trump obviously knows that. By presenting a deluge of obvious, easily discredited lies, Trump carried his listeners on a roller coaster ride of bluster, suspicion, paranoia, and absurdity. As a master of those dark arts, Trump follows the path of the Big Lie. As Goebbels demonstrated in the previous century, if you want to tell lies, go big.
by William D. Harpine
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Research Note:
Here is the original article about the Firehose of Falsehood. Any current persuasion textbook will discuss the Elaboration Likelihood Model. Richard Perloff's book is worth a look. I have blogged about the Elaboration Likelihood Model several times. This post about Paul Ryan seems apropos to the moment:
Image: Official White House photo
Copyright @2025 by William D. Harpine
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