COLD CASE: Trump has vowed to reopen the 9/11 investigation

Disenfranchised working class voters propelled the billionaire reality star into the White House this week in one of the biggest election upsets in US history.

In his first days as President-elect, Republican Trump has given few clues on how he plans to honour his pledge to “Make America Great Again”.

But ahead of his Brexit-style election earthquake, Trump threatened to lift the lid on one of the most catastrophic terror attacks in modern history.

DISASTER: Almost 3,000 people died in the monstrous terror attack

Speaking at a Republican rally in Henrico County, Virginia, Trump pledged to launch a fresh probe into the 2001 September 11 attacks.

He claimed that the attack by Islamic terrorist group al-Qaida was not properly investigated and vowed to get to the bottom of it.

Pressed about the attacks on the World Trade Center, and his plan to prevent further massacres, he said: “First of all, the original 9/11 investigation is a total mess and has to be reopened.

Speculating over the collapse of the skyscraper after the attack, he said: “How do two planes take out three buildings in the same day?

“I never got my head around the fact that nothing is mentioned about the destruction of Building 7 in the 585-page document.”

ATTACK: The World Trade Center was targeted in 2001

Accusing “19 high-jackers from Saudi Arabia” of carrying out the attack, he blasted George Bush’s administration for not taking legal action against the country in the February debate.

He added: “The World Trade Center came down during the reign of George Bush.

“He kept us safe? That is not safe. That is not safe.

“Americans deserve answers and I would definitely request a new investigation so that this horrible tragedy never happens again.”

RIDDLE: Conspiracy theorists claim the towers were brought down intentionally

Like many of his other seemingly off-the-cuff election promises, it is not yet clear whether he intends to re-open the 9/11 probe.

Although there is little establishment support for reopening the investigation, a number of government chiefs have demanded the case be revisited.

Former Governor of Florida Bob Graham has been demanding a new transparent investigation for years.

He said: “For years I have been campaigning for the release of the 2002 Joint Congressional Intelligence Committee 9/11 Inquiry’s report, to no avail.

“These missing pages point to the direct involvement of the government of Saudi Arabia.

“Why are these being kept secret? Who has to gain from these games of secrecy?”

REVOLUTION: Former Governor of Florida Bob Graham said the documents could 'start a revolution'

Due to a Freedom of Information exemption, the documents from the 9/11 Commission Report, released in 2002, were heavily redacted.

In the 28 pages released, the Saudi Arabian government claimed they were not responsible for supporting or financing the attacks.

Mr Graham added: “I have read these documents myself and if the American public knew what was in these documents, there would be a revolution tomorrow in the streets of America.

“Americans deserve to know the truth.”

Conspiracy theorists have claimed for years that the 9/11 attack was an “inside job” – known as a false flag attack – aimed at fuelling support for War on Terror.

There is no proof to stand up these claims – but truth seekers have pointed to footage which appears to show the Twin Towers explode before the planes hit.