Most of Joe Biden’s past supporters see him as too old. An 81-year-old president with an unsteady step is a turn-off. But Donald Trump, Biden’s malignant, 77-year-old predecessor, vows to be a dictator for “a day”, calls for suspending the constitution and threatens Nato. “Russia, if you’re listening”, his infamous 2016 shout-out to Vladimir Putin, still haunts us eight years on. Democracy is on the ballot again.

'Disinformation on steroids’: is the US prepared for AI’s influence on the election?

Against this bleak backdrop, Sasha Issenberg delivers The Lie Detectives, an examination of disinformation in politics. It is a fitting follow-up to The Victory Lab, his look at GOTV (“getting out the vote”) which was published weeks before the 2012 US election.

Issenberg lectures at UCLA and writes for Monocle. He has covered presidential campaigns for the Boston Globe and he co-founded Votecastr, a private venture designed to track, project and publish real-time results. Voting science, though, is nothing if not tricky. A little after 4pm on election day 2016, hours before polls closed, Votecastr calculations led Slate to pronounce: Hillary Clinton Has to Like Where She Stands in Florida.

The Victory Lab and The Lie Detectives are of a piece, focused on the secret sauce of winning campaigns. More than a decade ago, Issenberg gave props to Karl Rove, the architect of George W Bush’s successful election drives, and posited that micro-targeting voters had become key to finishing first. He also observed that ideological conflicts had become marbled through American politics. On that front, there has been an acceleration. These days, January 6 and its aftermath linger but much of the country has moved on, averting its gaze or embracing alternative facts.

In 2016, Issenberg and Joshua Green of Businessweek spoke to Trump campaign digital gurus who bragged of using the internet to discourage prospective Clinton supporters.

“We have three major voter suppression operations under way,” Issenberg and Green quote a senior official as saying. “They’re aimed at three groups Clinton needs to win overwhelmingly: idealistic white liberals, young women and African Americans.”

It was micro-targeting on steroids.

The exchange stuck with Issenberg. “I thought back often to that conversation with the Trump officials in the years that followed,” he writes now. “I observed so much else online that was manufactured and perpetuated with a similarly brazen impunity.”

In The Lie Detectives, Issenberg pays particular attention and respect to Jiore Craig and her former colleagues at Greenberg Quinlan Rosner Research, a leading Democratic polling and strategy firm founded by Stan Greenberg, Bill Clinton’s pollster. Issenberg also examines the broader liberal ecosystem and its members, including the billionaire Reid Hoffman, a founder of LinkedIn and PayPal. The far-right former Brazilian president Jair Bolsonaro and his “office of hate” come under the microscope too.

Craig’s experience included more than a dozen elections across six continents. But until Trump’s triumph, she had not worked on a domestic race. To her, to quote Issenberg, US politics was essentially “a foreign country”. Nonetheless, Craig emerged as the Democrats’ go-to for countering disinformation.

“It was a unique moment in time where everybody who had looked for an answer up until that point had been abundantly wrong,” Craig says. “The fact that I had to start every race in a new country with the building blocks allowed me to see things that you couldn’t.”

No party holds a monopoly on disinformation. In a 2017 special election for US Senate in Alabama, Democratic-aligned consultants launched Project Birmingham, a $100,000 disinformation campaign under which Republicans were urged to cast write-in ballots instead of voting for Roy Moore, the controversial GOP candidate.

The project posed as a conservative operation. Eventually, Hoffman acknowledged funding it, but disavowed knowledge of disinformation and said sorry. Doug Jones, the Democrat, won by fewer than 22,000 votes. The write-in total was 22,819.

How to steal a US election: Harvard’s Lawrence Lessig on Trump’s new threat

More recently, Steve Kramer, a campaign veteran working for Dean Phillips, a long-shot candidate for the Democratic nomination against Biden, launched an AI-generated robocall that impersonated the president.

Comparing himself to Paul Revere and Thomas Paine, patriots who challenged the mother country, Kramer, who also commissioned a deepfake impersonation of Senator Lindsey Graham, said Phillips was not in on the effort. If the sorry little episode showed anything, it showed disinformation is here to stay.

Under the headline Disinformation on steroids: is the US prepared for AI’s influence on the election?, a recent Guardian story said: “Without clear safeguards, the impact of AI on the election might come down to what voters can discern as real and not real.”

Free speech is on the line. Last fall, the US court of appeals for the fifth circuit – “the Trumpiest court in America”, as Vox put it – unanimously held that Biden, the surgeon general, the Centers for Disease Control and Prevention (CDC) and the FBI violated the first amendment by seeking to tamp down on Covid-related misinformation.

In the court’s view, social media platforms were impermissibly “coerced” or “significantly encouraged” to suppress speech government officials viewed as dangerously inaccurate or misleading. The matter remains on appeal, oral argument before the supreme court set for later this month.

Issenberg reminds us that Trump’s current presidential campaign has pledged that a second Trump administration will bar government agencies from assisting any effort to “label domestic speech as mis- or dis-information”. A commitment to free speech? Not exactly. More like Putinism, US-style.

According to Kash Patel, a Trump administration veteran and true believer, a second Trump administration will target journalists for prosecution.

“We will go out and find the conspirators, not just in government but in the media,” Patel told Steve Bannon, Trump’s former campaign chair and White House strategist. “Yes, we’re going to come after the people in the media who lied about American citizens, who helped Joe Biden rig presidential elections. We’re going to come after you.”

Welcome to the Trump Vengeance tour.