Donald Trump has said he knows who was behind the al-Qaeda attacks on America in September 2001 and added that “Iraq did not knock down the World Trade Centre”.

“It was not Iraq,” the president told ABC News. “It were other people. And I think I know who the other people were. And you might also.”

Mr Trump was criticising America’s military intervention in the Middle East, which he said was ”the worst decision made in the history of our country”

He described the region as “like quicksand” and added: ”It was a terrible decision to go into the Middle East. Terrible.
“We’re now up to almost $8trn (£6.4trn). And when we want to build a roadway, a highway, a school, or something, everyone’s always fighting over money. It’s ridiculous. So that was a bad decision.”
Mr Trump made the remarks after he was asked why he praised Kim Jong-un, the leader of North Korea.
The president initially claimed he says “good things about lots of people” before remarking “I’ve done a great job” and saying “everyone thought we were going to be at war” the day after he was elected.
He then said he had been “rebuilding the military” which he said was “totally depleted between President Bush with the Middle East” and then segued into his attack on the “terrible decision to go into the Middle East”.