Well, I am about to do that. He has lately taken flack for being the first prominent figure to (at long last) connect the dots and publicly lay at least partial blame for the 9/11 attacks at the feet of President George W. Bush, the man who was not only captain at the helm, but proximately responsible under any adult standard. Certainly, had the legitimately elected fellow - Al Gore - been in the White House, and the same tragedy occurred, we would never have heard the end of it!
To Trump's remark I grunted "amen, but let's plumb deeper!" For years I've been begging that someone with Washington access dig into FBI and Justice Dept records and see how many agents were re-assigned, after G.W. Bush's inauguration, to hunt for indictable offenses supposedly committed by Bill Clinton and his officials.
We do know that the search for 'smoking guns' was fervid and intense… and ultimately fruitless, as the Clinton Administration -- long proclaimed by Fox to be the "most corrupt" -- in fact turned out to be the only one in U.S. history with ZERO high officials even indicted (let alone convicted) for malfeasance of office. Though not for lack of desperate GOP effort, during the first 8 months of 2001, using their complete control over all branches of government to seek anything they might pin on the Clintons, anything at all.
What I don't get is why not a single journalist has asked "what were those federal agents doing, before George Bush diverted them into that wild-goose witch hunt?"
If even one of them had been shifted from anti-terrorism duties, then suddenly Donald Trump's brash remark starts to take real substance. Might those diverted agents have uncovered the 9/11 plot in time to thwart it? Given how nearly the plotters were caught, several times, it certainly seems plausible. Especially by the standards of evidence that are currently deemed normal in Congressional committees "investigating" the death for four (as opposed to three thousand) Americans in Benghazi.
(Note, if you tabulate aftermaths, the casualties from 9/11 might amount to forty thousand.)

You think I am making this up, or even exaggerating? Richard A. Clarke, Bush's National Security Council counterterrorism czar and author of Against All Enemies: Inside America's War on Terror -- later testified that dire warnings were consistently not taken seriously: "This administration didn't either believe me that there was an urgent problem or was unprepared to act as though there was an urgent problem."
If you read this article, you will never again offer up the pablum that Bush bore no responsibility for 9/11… or that he "kept us safe." That anyone would screech about Benghazi, while tacitly accepting the far greater coverup re 9/11, displays hypocrisy of truly volcanic dimensions.
== Competence with nuclear codes? ==
Only now the drama escalates! In a ramping up of the war of words between Donald Trump and Jeb Bush, Jeb has declared Trump too shallow and unstable to be trusteed with America's nuclear deterrent.

But then, which Republicans would YOU trust with the launch codes? Not wild-eyed and proudly-ignorant Carson, nor spittle-raving Cruz, nor bring-me-the-heart-of-Snow-White Fiorina. Not petulant Jindal… nor Mike Huckabee who actively calls for an end to the world.

Given that every single major attributable statistical metric of US national health - including conservative ones like the economy, rate of change of deficits, business health and US military readiness - plunged across the span of both Bush administrations, could we survive another? Which leaves Rubio -- who seems a nice fellow, though callow and utterly-utterly-utterly beholden to crazies and oligarchs.
Sorry. By the very standard Jeb raised, we'd be insane to let any one of them have a burnt and doused match.