A victory for the Leavers! Good riddance to this vile Remain Commons Speaker!
I thoroughly support Deputy Speaker Lindsay Hoyle, the Labour MP for Chorley and a hard Brexiteer, becoming the new Speaker.
John Bercow says he will stand down as Commons Speaker and MP at the next election or on 31 October, whichever comes first.
Speaking in Parliament, Mr Bercow said his 10-year "tenure" was nearing its end and it had been the "greatest honour and privilege" to serve.
If there was no early election, he said 31 October would be the "least disruptive and most democratic" date.
The ex-Tory MP succeeded the late Michael Martin as Speaker in 2009.
He has faced fierce criticism from Brexiteers, who have questioned his impartiality on the issue of Europe and claim he has facilitated efforts by MPs opposed to a no-deal exit to take control of Commons business.
Who is John Bercow?
He has also been criticised for not doing more to tackle allegations of bullying and harassment in the House of Commons.
Mr Bercow himself has been accused of mistreating several members of his own staff, which he denies.
In a break from normal convention, Mr Bercow was facing a challenge from the Conservatives in his Buckingham constituency at the next election - whenever it is called.
His wife, Sally, was in the public gallery as he made his announcement - which comes just hours before Parliament is due to be suspended or prorogued for five weeks.
Mr Bercow said he had decided at the time of the 2017 election that this would be his last Parliament as Speaker.
If MPs reject calls for an early election later on Monday, as seems likely, the Speaker said it was important an "experienced figure" chaired debates in the final week of October leading up to the UK's possible exit from the EU.
The period between 14 October - when the Queen will open the new session of Parliament and the government announces its new legislative programme - and 31 October is likely to be among the most eventful and unpredictable in living memory.
Prime Minister Boris Johnson has said he will not ask for a further Brexit delay and the UK must leave the EU on Halloween.
Mr Bercow received a standing ovation after his announcement, although not all Tories joined in