The prime minister’s decision to suspend Parliament has prompted an angry backlash from MPs and opponents of a no-deal Brexit.
It sparked protests across the country, a legal challenge and a petition with more than a million signatures.
The government said the five-week suspension in September and October will still allow time to debate Brexit.
Leader of the House Jacob Rees-Mogg said opponents of the PM were “phoney” and just wanted to stay in the EU.
He told BBC Breakfast that Parliament would normally head into a recess for the party conferences in September anyway – adding there would still be time to debate Brexit in the Commons before the scheduled departure date of 31 October.
Cabinet minister Michael Gove added the suspension, which was approved by the Queen on Wednesday, was “certainly not” a political move to obstruct opposition to the UK leaving the EU without a deal.
But Ruth Fox – director of parliamentary experts the Hansard Society – said this prorogation was “significantly longer than we would normally have” for the purpose of starting a new parliamentary session.
Ms Fox told BBC Radio 4’s Today programme that, depending on the day the suspension began – and on whether MPs would have voted to have a party conference recess at all – the prorogation could “potentially halve” the number of days MPs have to scrutinise the government’s Brexit position.