Piers Morgan was flooded with messages on social media after the presenter made a shock announcement a day before Sir Keir Starmer resigned from government. Taking to micro-blogging platform, X, on Sunday, the Uncensored host, 61, shared a message from Donald Trump's Truth Social account. The former Good Morning Britain presenter declared it was the "final humiliation" to Keir Starmer's premiership, as the US president seemingly confirmed the Prime Minister was stepping down from his position before it had been announced to the British public.

Trump's message read: "Keir Starmer will resign as Prime Minister of The United Kingdom. He failed badly on two very important subjects - IMMIGRATION AND ENERGY [OPEN NORTH SEA OIL]. I wish him well! President DJT."

Piers shared the president's post with his 8.8million followers, writing: "BREAKING: President Trump confirms Keir Starmer is resigning as Prime Minister... before Starmer has confirmed it himself. The final humiliation."

As of Monday, his tweet has received over 120,000 likes on the social media.

Piers took aim at Sir Keir again as the ex-Labour leader announced his resignation in an emotional farewell outside Downing Street.

He penned: "BREAKING: Keir Starmer cries as he resigns as UK Prime Minister. Sad end to a dismal tenure. Never seen such a big election win end in such abject failure so fast. Bottom line: he wanted power but didn't know how to lead the country. He was the ultimate man without a plan."

After losing the confidence of his MPs and key members of his cabinet, Sir Keir appeared outside Downing Street on Monday to announce his resignation as prime minister, paving the way for Andy Burnham to potentially take over as leader of the Labour government.

Less than two years after a historic election victory, Starmer had faced calls from his MPs, including privately from cabinet ministers, to set out a timeline for his departure, amid the ongoing threat from Nigel Farage's party before the next general election.

The prime minister said he would remain in post until parliament returned in September, meaning he would represent the UK at the next Nato summit in early July.

“I will also give my successor my full and unequivocal support, knowing that they will inherit a Britain that is far stronger and fairer than the one I inherited two years ago, better prepared for the challenges ahead and better able to ensure the Labour party secures a second term in office,” he said.

Burnham was sworn in as an MP on Monday afternoon after seeing off Reform UK to win the Makerfield byelection last week.