As Spiderman might say, let’s do this one last time …

In 2019, Rudy Giuliani went to Ukraine on orders from Donald Trump and came back with a story. That story was so ludicrous that everyone passed on it, including Fox News. But there was one place where Giuliani could still get this mess published: The New York Times.

According to that story, Joe Biden went to Ukraine and demanded the firing of Ukrainian prosecutor Viktor Shokin because Shokin was investigating Burisma, the energy company where Hunter Biden served on the board. Biden allegedly threatened to withhold U.S. aid from Ukraine until Shokin was canned so Hunter could continue to collect his paycheck, and this oh-so-good prosecutor was unjustly fired.

The Times ran the story verbatim, without seeming to do anything like check Giuliani’s sources or look at public records. However, within a few days, Bloomberg dispatched a reporter to Ukraine to check on what Giuliani was selling, and sure enough, it was all bullshit.

Not only had Shokin not been investigating Burisma, he was so notoriously corrupt that officials in both the U.S. and the U.K. called for his removal for years. Biden didn’t start the push to remove Shokin, and he didn’t act alone. Everything that happened in Ukraine was very public, and European officials celebrated when Shokin was finally sacked.

There was no story. There never had been a story. But that didn’t stop Republicans from continuing to repeat Giuliani’s fairytale.

Then a miracle happened. Republicans learned that the FBI had been given a tip about this subject, one that resulted in an FD-1023 form that seemed to back up everything Giuliani had said in 2019. Over objections from the FBI, Sen. Chuck Grassley and Rep. Jim Jordan demanded the form. Then Grassley and Comer released the form to the public, and it became the beating heart of the Republican “impeachment investigation.”

And the form was perfect. Referring to Joe Biden as the “big guy” was in there. A claim that Hunter Biden was hired to "protect us, through his dad, from all kinds of problems” was right on the front page. The “17 recordings” of phone calls that supposedly included Joe Biden getting directly involved with his son’s business came from this form. Best of all, it included the claim that a Burisma executive complained about how "it cost 5 (million) to pay one Biden, and 5 (million) to another Biden.”

The form was everything. The absolute proof that Republicans wanted.

Except, of course, everything in it completely contradicted years of public records and statements from those involved. Republicans didn’t let that bother them. Comer defended this form repeatedly, calling Democrats who challenged its contents liars. Grassley declared the importance of those recordings mentioned in the form, even while admitting they might not exist. Jim Jordan practically quoted the form in his questioning of Devon Archer, and then lied about Archer’s testimony when it failed to match up.

Then last Thursday, Alexander Smirnov, the man behind that FD-1023, was charged with lying to the FBI and creating false records. According to CNN, Smirnov has informed investigators that he has “‘extensive and extremely recent’ contacts” with Russian spies. And in an interview after his arrest, Smirnov admitted that “officials associated with Russian intelligence were involved in passing a story about Businessperson 1.”

“Businessperson 1” is Hunter Biden.

So, Republicans have not only spent the last year pressing an investigation of the president’s son largely instigated by a document that turns out to have been tailor-made for them by Russian intelligence, they opened an impeachment inquiry with a Russian agent as the “heart” of their investigation.

The answer to why the FBI was so reluctant to release the document is simple: They don’t release unfounded accusations (unless they come from James Comey or Robert Hur, of course). And that ongoing investigation that had Republicans so excited was the investigation of Smirnov, not Hunter Biden.

All of this was a lie, and Republicans knew it. Just ask one of the men who toured Giuliani around Ukraine in the first place.

Republicans are plowing on, keeping up the pretense that this source they made such a big deal about for so long was just “ancillary” to their investigation into what they love to call “the Biden crime family.” They have other evidence, dammit. Like how Joe Biden once loaned his son some money for a truck.

But in the last day, another part of the investigation into Hunter Biden has crumbled into dust. As in sawdust.

Federal prosecutors mistakenly claimed in a court filing that a photo of sawdust they found while searching Hunter Biden's electronics was cocaine, attorneys for the president's son said Tuesday.

How anyone could have ever thought that this material, which was tan in color and sitting on a table saw, was anything other than sawdust is astounding. But a picture of any kind of dust seemed to be convincing to Sean Hannity, so Fox News audiences aren’t likely to be threatened by the truth. (This also raises questions about just what Hannity has been putting up his nose.)

A Russian agent. A fake document. A pile of sawdust. That’s what Republicans have to show for their big investigation.

It would be really great to hear what’s happening behind those closed doors today. Democrats should be having fun.