The Trump era — and, of course, the convicted felon himself — have done potentially irreparable harm to American democracy by perpetuating the greatest lie in our history, namely that a presidential election was fraudulent.

By repeating this lie over and over and over again, an idea has been deeply embedded in the minds of millions that no election save the one Donald Trump wins is legitimate. All the court cases, the indictments and convictions for election interference, all the fraud of this “big lie” has reshaped American politics.

One poll earlier this year found one-third of Americans continue to believe the lie, and apparently there is no dissuading them.

The Jan. 6, 2021, insurrection at our nation’s Capitol was a natural outcome of this enormous lie. People who believed Trump and those who spread his lies — and some who clearly wanted to believe — attempted to halt the peaceful transfer of power, a bedrock concept of American democracy that was never before in doubt, even in the tumultuous days before our Civil War.

Now comes Trump’s second “big lie,” namely that his recent conviction in a New York state court on 34 felony counts was a rigged process perpetrated by a “weaponized” U.S. Justice Department acting at the direction of the president of the United States.

This lie, as with the other big one, has now been amplified by nearly every Republican member of Congress, many of them with law degrees, providing at least a modicum of evidence that they know better, but still they lie.

Consider the stunning pandering to Trump of former Ada County Prosecutor and now Sen. James E. Risch.

“As a former prosecutor,” Risch said, “I learned early the importance of our constitutional right to the due process of law. Due process is simply basic fairness. ... New York’s mock trial did not attempt even an appearance of fairness.”

Or Sen. Mike Crapo, a Harvard-educated lawyer, who took to social media to proclaim that “a politically motivated prosecutor has ashamedly and unprecedentedly weaponized the legal system against a former United States President.” A “dangerous move,” Crapo said, “threatening the security of our entire justice system.”

Or Congressman Mike Simpson, in full MAGA dudgeon and singing from the Trump script, also invoked the term “weaponized.” Trump’s unanimous guilty verdict, Simpson thundered, was the result of an “absurd political trial.”

Or Congressman Russ Fulcher: “Americans are awake; the current president’s unjust sham trial of a political opponent has mobilized an army of freedom-loving Americans to take our country back!” Fulcher actually attempted a twofer with his denunciation of the justice system, for good measure throwing in a reference to “unsecured elections.”

First, and most strikingly, no Republican, at least not the four mentioned here, proclaimed Trump’s innocence. None dealt with the actual charges brought against him, including falsifying business records to hide a hush money payment related to his one night stand with adult film actress Stormy Daniels. Through this illegal scheme, prosecutors argued — and a 12-person jury agreed — Trump was determined to keep the tryst with a porn star secret from voters by paying hush money. The timing of these acts matter because at the time they happened the infamous “Access Hollywood” tape, where Trump bragged of grabbing women’s genitals, had recently been released.

This second big lie, like the first, can’t be bothered by evidence presented or the deliberate judicial process that brought 12 jurors to a unanimous decision. None of this was manufactured. Trump did this to himself.

Then there is the Trumpian charge that President Joe Biden engineered all this — “the current president’s unjust sham trial” — simply to get his political opponent. Again the facts are inconvenient.

Manhattan District Attorney Alvin Bragg is a state prosecutor not answerable to the Justice Department. Biden didn’t appoint him. New York voters elected him just as Ada County voters elected Risch back in his prosecutor days. Trump might have been prosecuted in federal court for his crimes, but he wasn’t. It was a state-level prosecution based on state law.

And what of the “weaponized” Justice Department of a Democratic administration? Maybe Republicans are referring to the “weaponized” prosecution of the president’s son, Hunter Biden, by the U.S government.

Or perhaps Republicans are thinking of the “weaponized” prosecution on federal corruption charges, again by the Biden Justice Department, of two Democrats — New Jersey Sen. Robert Menendez and Texas Congressman Henry Cuellar. And what of those 12 New York jurors? It was telling that Trump trial judge, New York County Supreme Court Justice Juan Merchan, told potential jurors at the outset of jury selection that anyone who didn’t want to be considered for the Trump jury could simply leave. Many did, presumably some of them not eager to run the risk of being harassed, or worse, by Trump and his followers.

The remaining jurors, including all those selected for the trial, were subject to vetting by Trump’s defense team. The dozen selected, at least before the verdict, satisfied those lawyers. Imagine their responsibility. The first former president indicted and convicted of a felony. That these jurors took their civic duty as a solemn, patriotic responsibility of citizenship deserves not only respect, but deference.

Calling the Trump trial an “absurd political trial,” as Simpson did, or a “mock trial,” as Risch has done, has one particularly pernicious outcome, to denigrate the American citizens who served on that jury despite knowing they might well jeopardize their own personal safety by signing on for the responsibility.

And what are these Idaho elected officials saying by playing their own voters for such rubes? How do they credibly dismiss 34 felony convictions? And what of the 54 charges still pending against Trump? Is each and every one a manufactured “absurd political trial” where “mock” justice will play out?

We know — all of us know — why Risch and Crapo and the rest are behaving as they are. They are afraid. Afraid of Trump. Afraid of a future primary opponent. Afraid of losing a job. Afraid, as former Maryland Gov. Larry Hogan has discovered, that one can be cast out of the party of “law and order” for simply saying that Americans should respect the outcome of a trial.

The second big lie joins the first as Trump’s contribution to America’s future. Recovery from these lies will not be easy or quick, and the next few months will determine whether recovery is even possible.

This November we will not merely elect a president. We will conduct a referendum on whether American institutions, including courts and judges and juries, can again be respected and defended.

Tragically these Idaho Republicans have already voted: No.

Johnson, of Manzanita, Ore., served as chief of staff to the late former Idaho Gov. Cecil D. Andrus. His new book on the U.S. Senate in the 1960s — “Mansfield and Dirksen: Bipartisan Giants of the Senate” — has been published by the University of Oklahoma Press.