Forget executive privilege, contempt of Congress, “Fast and Furious,” how many documents the government has produced and who said what to whom on which date.

The Obama administration has almost certainly engaged in the most shockingly vile corruption scandal in the history of the country, not counting the results of Season Eight on “American Idol.”

Administration officials intentionally put guns into the hands of Mexican drug cartels, so that when the guns taken from Mexican crime scenes turned out to be American guns, Democrats would have a reason to crack down on gun sellers in the United States.

Democrats will never stop trying to take our guns away. They see something more lethal than a salad shooter and wet themselves.

But since their party was thrown out of Congress for the first time in nearly half a century as a result of passing the 1994 “assault weapons ban,” even liberals know they’re going to need a really good argument to pass any limitation on guns ever again.

So it’s curious that Democrats all started telling the same lie about guns as soon as Obama became president. In March 2009, Secretary of State Hillary Clinton announced to reporters on a trip to Mexico: “Since we know that the vast majority, 90 percent of that weaponry (used by Mexican drug cartels), comes from our country, we are going to try to stop it from getting there in the first place.”

As she sentimentally elaborated on Greta Van Susteren’s Fox News show: “The guns sold in the United States, which are illegal in Mexico, get smuggled and shipped across our border and arm these terrible drug-dealing criminals so that they can outgun these poor police officers along the border and elsewhere in Mexico.”

Suddenly that 90 percent statistic was everywhere. It was like the statistic on women beaten by their husbands on Super Bowl Sunday.

CBS’ Bob Schieffer asked Obama on “Face the Nation”: “It’s my understanding that 90 percent of the guns that they’re getting down in Mexico are coming from the United States. We don’t seem to be doing a very good job of cutting off the gun flow. Do you need any kind of legislative help on that front? Have you, for example, thought about asking Congress to reinstate the ban on assault weapons?”

At a Senate hearing, Sen. Dianne Feinstein, D-Calif., said: “It is unacceptable to have 90 percent of the guns that are picked up in Mexico and used to shoot judges, police officers and mayors … come from the United States.”

And then, thanks to Fox News — the first network to report it — we found out the 90 percent figure was complete bunkum. It was a fabrication told by William Hoover, of the Bureau of Alcohol, Tobacco, Firearms and Explosives (BATF), and then spread like wildfire by Democrats and the media.

Mexican law enforcement authorities send only a fraction of the guns they recover from criminals back to the U.S. for tracing. Which guns do they send? The guns that have U.S. serial numbers on them. It would be like asking a library to produce all their Mark Twain books and then concluding that 90 percent of the books in that library are by Mark Twain.

You begin to see why the left hates Fox News so much.

Obama backed away from the preposterous 90 percent claim. His National Security Council spokesman explained to Fox News that by “recovered,” they meant “guns traceable to the United States.” So, in other words, Democrats were frantically citing the amazing fact that almost all the guns traceable to the U.S. were … traceable to the U.S.

Attorney General Eric Holder told reporters that even if the percentage is inaccurate, the “vast majority” of guns seized in crimes in Mexico come from the United States. And he should know, because it turns out he was sending them there!

Apart from the guns Holder was giving them, this was an absurd claim. Most of the guns used by drug cartels are automatic weapons — not to mention shoulder-fired rockets — that can’t be sold to most Americans. They are acquired from places like Russia, China and Guatemala.

Right about the time the 90 percent lie was unraveling, the Obama administration decided to directly hand thousands of American guns over to Mexican criminals. Apart from the fact that tracking thousands of guns into Mexico is not feasible or rational, the dumped guns didn’t have GPS tracing devices on them, anyway. There is no conceivable law enforcement objective to such a program.

This is what we know:

(1) Liberals thought it would be a great argument for gun control if American guns were ending up in the hands of Mexican criminals;

(2) They wanted that to be true so badly, Democrats lied about it;

(3) After they were busted on their lie, the Obama administration began dumping thousands of guns in the hands of Mexican criminals.

We also know that hundreds of people were murdered with these U.S. government-supplied guns, including at least one American, U.S. Border Patrol agent Brian Terry.

But let’s look on the bright side. The BATF was originally going to ship warheads to Iran until realizing the explosions might disable the tracking devices.

(Contrary to more Democrat lies, there was no such program to dump thousands of guns in Mexico under George W. Bush. The Bush administration did have a program that put GPS trackers on about 100 guns in order to actually trace them. That operation was ended almost as soon as it began because of the lack of cooperation from Mexican officials. You may as well say Holder’s program was “started” by the first cop who ever put tracer dye on contraband.)

No one has explained what putting 2,500 untraceable guns in the hands of Mexican drug dealers was supposed to accomplish.

But you know what that might have accomplished? It would make the Democrats’ lie retroactively true — allowing them to push for the same gun restrictions they were planning when they first concocted it. A majority of guns recovered from Mexican criminals would, at last, be American guns, because Eric Holder had put them there.

Unfortunately for the Democrats, some brave whistleblower inside the government leaked details of this monstrous scheme. As soon as Congress and the public demanded answers, Holder clammed up. He just says “oops” — and accuses Republicans of racism.

Ann Coulter is a political commentator and author.