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As President Trump claims he is “close” to signing a mining deal with Ukraine, and his secretary of state Marco Rubio talks about a lack of “gratitude” from President Zelenskyy for US military assistance, our US correspondents Mark Stone, Martha Kelner and James Matthews discuss if this is the real reason Trump’s administration appears to have turned its back on Ukraine.

And, why Canada is taking its feud with Donald Trump on to the ice.

You can email James, Mark and Martha on trump100@sky.uk

Donald Trump has purged top military figures in the Pentagon, including firing America’s most senior commander.

He also pushed out five other admirals and generals in an unprecedented shake-up of US military leadership.

The Pentagon had been bracing for mass firings of civilian staff as well as a dramatic overhaul of its budget and a shift in military deployments.

Chairman of the Joint Chiefs of Staff, Air Force General Charles ‘CQ’ Brown – America’s highest-ranking general and only the second black general to serve as chairman – was fired with immediate effect.

The president will also replace the head of the US Navy, a position held by Admiral Lisa Franchetti, the first woman to lead a military service, and the Air Force vice chief of staff, the Pentagon said.

He is also removing the judge advocates general for the Army, Navy and Air Force, critical positions that ensure enforcement of military justice.

The campaign to rid the military of leaders who support diversity and equity in the ranks has been condemned by Democrats.

Representative Seth Moulton, a Massachusetts Democrat, said the firings were “un-American, unpatriotic, and dangerous for our troops and our national security.”

“This is the definition of politicising our military,” he said.

Senator Jack Reed of Rhode Island, the top Democrat on the Senate Armed Services Committee, said: “Firing uniformed leaders as a type of political loyalty test, or for reasons relating to diversity and gender that have nothing to do with performance, erodes the trust and professionalism that our servicemembers require to achieve their missions.”

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During the election, Mr Trump spoke of firing “woke” generals and those he saw as responsible for the withdrawal from Afghanistan.

Defence secretary and former Fox News personality Pete Hegseth has questioned whether General Brown would have got the job if he were not black.

There is no indication his appointment was not based on merit.

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On Friday, Mr Trump said: “I want to thank General Charles ‘CQ’ Brown for his over 40 years of service to our country, including as our current Chairman of the Joint Chiefs of Staff.

“He is a fine gentleman and an outstanding leader, and I wish a great future for him and his family.”

It’s unclear who Mr Trump will choose to replace the judge advocates. Mr Hegseth previously criticised military lawyers, saying most “spend more time prosecuting our troops than putting away bad guys”.

Dozens of supporters were outside court as the man accused of fatally shooting the chief executive of UnitedHealthcare made his first appearance.

Luigi Mangione has pleaded not guilty to multiple counts of murder following the 4 December killing of Brian Thompson, 50, outside a midtown Manhattan hotel.

The 26-year-old is accused of ambushing and shooting the executive as he walked to an investor conference.

Dozens of people who showed up in court to support the suspect including former army intelligence analyst Chelsea Manning who was jailed for stealing classified diplomatic cables.

Dozens more queued in the hallway.

Mangione is also facing federal charges that could carry the possibility of the death penalty.

The judge set a deadline of 9 April to submit pre-trial motions.

In addition to the New York cases, Mr Mangione also faces charges of forgery, carrying firearms without a licence, and other counts in Pennsylvania, where authorities arrested him at a McDonald’s.

Police say he was in possession of a gun, bullets, multiple fake IDs and a handwritten document that expressed “ill will” towards corporate America.

He is being held in a Brooklyn jail alongside several other high-profile defendants, including music mogul and rapper Sean “Diddy” Combs, and disgraced crypto entrepreneur Sam Bankman-Fried.

The killing prompted some to voice their resentment at US health insurers, with Mangione attracting a cult following.

A poll taken in the wake of the shooting showed most Americans believe health insurance profits and coverage denials were partly to blame for the incident.