The Qatari jet gifted to President Donald Trump, which made its debut as Air Force One last week, was quickly retrofitted for security upgrades, but some experts have questioned whether it is entirely up to snuff.

Follow the latest news on the major headlines of the day.

Trump said the Qatari jet would fly to a U.S. base in England so U.S. service members could tour it.

The sudden change ‘for old time’s sake’ raises new questions about the retrofitted luxury Boeing 747 the US president received as a gift.

Could the new $400 million plane have developed a fault during its inaugural international trip? Or was there something more sinister?

Retrofitted $400 million jet faces scrutiny over alleged lack of missile detection and countermeasures systems

The White House is pissed over reports revealing why President Trump really ditched the new plane he bragged about receiving from Qatar.

The Qatari jet gifted to President Donald Trump, which made its debut as Air Force One last week, was quickly retrofitted for security upgrades, but some experts have questioned…

The switch sparked speculation about possible "security concerns," with reports suggesting the Qatar-gifted plane lacked some security features. | World News

Secret Service recommended the older presidential jet as a precaution after fighting with Iran resumed, while Trump denied security drove the switch but said he was ‘number one on…

Retrofitted $400 million jet faces scrutiny over alleged lack of missile detection and countermeasures systems

Sources told Haberman last year it was unlikely the Qatari jet could be retrofitted with the necessary security to protect the president.

Trump sent his new Qatari-gifted jet on ahead to Britain, where he switched planes for the journey to Washington.

White House denies security concerns prompted switch over from aircraft given to US by Qatar

The Secret Service advised that President Trump take the old plane to depart Turkey, according to people briefed on the situation.

The US president was forced to swap onto the old Air Force One as he left Turkey this week, intensifying the focus on his demands to rapidly retrofit the new donated 747.