Newspaper headlines: Donald Trump Twitter row dominates

The Daily Telegraph says it can reveal that plans for President Trump to visit the UK have been postponed indefinitely. The paper says American diplomats have dropped plans for him to make what's described as a "working visit" in January to open the new US embassy in London.

However, according to the Daily Mail, Whitehall sources have said the trip will go ahead in February.

Two former UK ambassadors to Washington told the Huffpost that withdrawing the invitation would be dangerous. One of them, Peter Jay, says he could imagine "few things more damaging".

Though he describes Donald Trump and Theresa May's relationship as "the most spectacularly uncomfortable" he's ever seen between a prime minister and president.

The i declares the so-called special relationship between the UK and US to be "in tatters".

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The Daily Mail says patients are to be denied cough medicines, migraine pills and heartburn remedies under sweeping NHS rationing plans. GPs, it says, will be told to stop routinely funding thousands of treatments for almost 40 conditions when they can be bought cheaply over the counter instead.

It's all part of an efficiency shake-up by NHS England chief executive Simon Stevens.

According to the Times, he's also effectively ripped up the government's waiting time targets for routine surgery, saying cancer, mental health and GP care should take priority.

But the paper says his bluntness is likely to exacerbate a public feud with the government over NHS funding.

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The Financial Times leads with an attack by Jeremy Corbyn on big banks, in which he describes them as "speculators and gamblers who crashed our economy".

In an online video posted on social media, Mr Corbyn warns banks operating in the City of London that he'd be a threat to their business if he became prime minister.

The Sun calls it a "rant" and the Daily Mail says he's "declared war on Britain's valuable banking sector".

Singled out for special criticism by Mr Corbyn is Morgan Stanley, whose analysts earlier this week implied that he was a bigger risk to the British economy than Brexit.

The lead in the Sun highlights the plight of two army dogs which helped save thousands of lives while on duty in Afghanistan,will which, it says, are now "on death row".

The Belgian shepherds, Kevin and Dazz, sniffed out deadly explosives in Helmand Province before being retired.

The dogs, aged nine, will be put down next week, the paper says, because Top Brass say they can't be rehomed.

The Sun appeals to readers to sign a petition, telling them: "These dogs saved lives - now save theirs."

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There's good news for red squirrels on the front of the Telegraph. The government has approved the biggest new forest in England for 30 years.

Six-hundred-thousand trees will be planted over 860 acres at Doddington North Moor, near Wooler in Northumberland.

The area's been designated a "red squirrel buffer zone", where experts will protect the threatened species from their grey cousins.

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Finally, stacks of diet and health news in the Daily Express. It leads on research by Chinese scientists that suggests a daily portion of cheese the size of a matchbox can slash the risk of heart disease by 14%.

And on an inside page, the paper explains how readers can work off the traditional Christmas dinner; all those extra calories can be shed apparently by running two marathons.