The Prime Minister will begin a make-or-break week for his faltering premiership by facing angry MPs over his involvement in the 'tawdry and shaming' affair.

Opposition leaders have called for the Prime Minister to resign as he faces allegations of misleading Parliament over Mandelson's vetting process for Ambassador to the US.

The prime minister said he was "staggered" to find out last week that civil servants in the Foreign Office withheld information from him.

The prime minister said he was "staggered" to find out last week that civil servants in the Foreign Office withheld information from him.

Sir Keir faces accusations of breaking the Ministerial Code by failing to promptly inform the Commons that new evidence had cast doubt on his earlier assurances of Mandelson's appointment.

They leapt to the defence of the Prime Minister as he faced ever-increasing questions and pressure over the revelations that experts who deemed Mandelson a security risk were over-ruled.

Embattled UK Prime Minister Keir Starmer will face lawmakers in parliament on Monday as he tries to quell anger over an unrelenting scandal involving long-time Jeffrey Epstein associate Peter Mandelson.

The prime minister says he only learned of security concerns around the ex-US ambassador earlier this week.

Sir Keir was told about it last Tuesday, meaning that he could have made a statement to MPs before Prime Minister's Questions on Wednesday or at any point on Thursday when Parliament was sitting.

LONDON, April 20 - British premier Keir Starmer will address parliament on Monday, facing calls for his resignation over his handling of the appointment of Peter Mandelson, a senior figure in his ruling Labour party, as U.S. ambassador, though it emerged he had failed a vetting process. Read more at straitstimes.com. Read more at straitstimes.com.

Mr Keir Starmer will address Parliament on April 20. Read more at straitstimes.com. Read more at straitstimes.com.

LONDON, April 18 - Britain's Deputy Prime Minister David Lammy signalled his support for Prime Minister Keir Starmer on Saturday over the ongoing row about the decision to appoint Peter Mandelson as ambassador to the United States. Read more at straitstimes.com. Read more at straitstimes.com.