It is said that history turns on small hinges, with the poem “For Want of a Nail” the classic example. 

Another example is unfolding before our eyes.

The sudden flurry of evidence and allegations about the Biden family’s money-making schemes is a direct result of the GOP winning control of the House of Representatives last year.

The margin of midterm victory was very small — just five seats — but the impact is very large because the majority comes with subpoena power.

And aggressive new Republican committee leaders are eager and willing to use that power.

After a slow start, they are producing at near-daily pace documentation of serious wrongdoing.

None of this would be happening if Democrats still had control of the House. 

The breakthroughs include testimony showing how a group of retired intelligence officials influenced the outcome of the 2020 presidential election, effectively proving the existence of a corrupt Deep State. 

There are also claims from an IRS whistleblower that federal law enforcement agencies are giving favored treatment to President Biden’s son in a long-running probe and that Attorney General Merrick Garland lied to Congress about the case.

The letter falsely suggested the Post stories were a form of Russian disinformation.

It hit the media just three days before the final presidential debate, allowing Biden to cite the letter as proof the laptop stories were false.

Because of the assumed credibility of the 51 signers, the letter, along with blackouts by Big Tech and Big Media of The Post’s scoops, helped save Biden from likely defeat, polls showed.

Linking the letter to the Biden campaign is significant because the president himself had to know the laptop was legitimate because the information on it included photos of him and messages and meetings.

As a Post editorial put it, the laptop was the real thing and the intel “letter was the real disinformation.”

So a Deep State not only exists, it meddled in and tilted a presidential election.

Part of that sinister force involved the many FBI former agents working at Facebook, Twitter and other tech firms, where they helped government officials censor the laptop stories and others that would have damaged Biden.

And Blinken is not the only Biden aide up to his eyeballs in dirty tricks.

Jake Sullivan, the president’s national security adviser, worked for Hillary Clinton in 2016 and helped spread the Big Lie that the infamous Steele dossier was true.

The most recent GOP bombshell involves the IRS whistleblower, who approached Comer and leaders of both parties with claims the IRS and Department of Justice are giving Hunter favored treatment.