My last post arose from Marco Rubio’s response to what Donald Trump said over the weekend, at that debate I had to stop watching.

Basically, Trump repeated the left’s “Bush lied” lie:

“You call it whatever you want. I wanna tell you. They lied…They said there were weapons of mass destruction. There were none. And they knew there were none. There were no weapons of mass destruction.”

It’s fascinating how starkly that belief continues to divide us, in terms of our perceptions of reality. The Post‘s Richard Cohen wrote:

Of all the surprises, of all the unexpected ironies, of all the unanticipated turns in the Republican presidential race, it’s possible that Donald Trump has been hurt by telling the truth. Trump himself must be reeling from such a development and has probably by now vowed to return to lying and bluster seasoned with personal insult — “You’re a loser” — but the fact remains that when he called the war in Iraq “a big, fat mistake,” he was exactly right. Jeb Bush, the very good brother of a very bad president, has now turned legitimate criticism of George W. Bush into an attack on his family. His family survived the war. Countless others did not.

Hey, at least he called Jeb a “very good brother,” right?

But it fell to The Wall Street Journal‘s editorial board to state what really happened, and what did not. As to Trump’s “They lied” assertion:

Despite years of investigation and countless memoirs, there is no evidence for this claim. None. The CIA director at the time, George Tenet, famously called evidence of WMD in Iraq a “slam dunk.” Other intelligence services, including the British, also believed Saddam Hussein had such programs. After the first Gulf War in 1991 the CIA had been surprised to learn that Saddam had far more WMD capability than it had thought. So it wasn’t crazy to suspect that Saddam would attempt to rebuild it after he had expelled United Nations arms inspectors in the late 1990s.

President Bush empowered a commission, led by former Democratic Sen. Chuck Robb and federal Judge Laurence Silberman, to dig into the WMD question with access to intelligence and officials across the government. The panel included Patricia Wald, a former chief judge of the D.C. Circuit Court of Appeals appointed by Jimmy Carter, and Richard Levin, president of Yale University at the time.

Their report of more than 600 pages concludes that it was the CIA’s “own independent judgments—flawed though they were—that led them to conclude Iraq had active WMD programs.” The report adds that “the Commission found no evidence of political pressure” to alter intelligence findings: “Analysts universally asserted that in no instance did political pressure cause them to skew or alter their analytical judgments.”…

The Journal‘s headline for that editorial was “Donald Trump’s MoveOn.org Moment.” Indeed. Once again, the extremes meet.

The big question this week is, as W. comes to South Carolina — which has been solid Bush country since 1988 (although not so much in 1980) — to help his brother out, how is Trump’s rant going to play here on Saturday?

Everyone’s asking that question.

In a rational world, it would sink Trump’s chances completely. But when in the past year have you seen the phenomenon of Trump fandom respond to anything resembling reason? Actual Republicans would likely react to this latest by saying Trump’s gone too far. But do you think “Trump supporters” and “Republicans” are the same set of people?

Add to that the fact that the GOP electorate in South Carolina hasn’t entirely been itself since it caught the Tea Party fever in 2010, and the effect of this particular rant may turn out to be a wash. Things are so messed up this year, I’m not going to try to make a prediction…