The Speaker of the House of Commons has faced calls to consider his position after an extraordinary attack on Donald Trump led to accusations he was ignoring his duty to remain impartial.

On Monday John Bercow effectively killed off the American President's chances of addressing MPs later this year.

His comments were applauded by Labour and SNP MPs.

Read more: John Bercow reignites controversy by opposing Donald Trump address to Parliament

But critics claim he has endangered the UK-US Special Relationship and should have remained neutral.

One Tory MP called on the Speaker to "think about" his position.

No 10 played down the idea that Mr Trump would have given a speech to MPs during a state visit to the UK this year.

But the row has created a diplomatic headache for Downing Street, which launched a White House charm offensive in the wake of the controversial tycoon's shock victory.

As well as Tory MPs, the Speaker of the Lords also clashed with his counterpart in the Commons.

Read more: John Bercow reignites controversy by opposing Donald Trump address to Parliament

Lord Fowler pledged to keep an "open mind" about any request to address Parliament "if and when it is made" as he cautioned that there would be other "controversial" leaders coming to the UK.

He also revealed that he had not been consulted by Mr Bercow before he made his statement.

Earlier, Tory MP Nadhim Zahawi called on Mr Bercow to "think about" his position.

He also suggested that the Speaker had left himself "open to the accusation of hypocrisy” because he welcomed the state visit of the. Chinese Premier last year.

Mr Bercow defended his comments, telling MPs that he had merely been carrying out his responsibilities and had acted "honestly and honourably".

On Monday he told MPS: "I feel very strongly that our opposition to racism and to sexism and our support for equality before the law and an independent judiciary are hugely important considerations in the House of Commons."

Read more: John Bercow reignites controversy by opposing Donald Trump address to Parliament

He added that he did not want Mr Trump to be invited to give a speech to MPs and peers in Westminster Hall or the Royal Gallery, a room often used for state receptions.

Afterwards, former First Minister Alex Salmond praised his "backbone".