The Prime Minister was accused last night of hiding the truth about his motive for shutting down Parliament for five weeks.
They added: "The prime minister's decision that parliament should be prorogued at the time and for the duration chosen and the advice given to Her Majesty to do so in the present case were political".
Johnson said the government is waiting to hear an appeal next week against the Scottish court ruling on the suspension of parliament in the Supreme Court, the United Kingdom's highest judicial body, and he respected the independence of the judges.
The group of parliamentarians who petitioned the Court of Session said their understanding is Parliament can now reassemble if it so wishes, with SNP MP Joanna Cherry among those calling for it to be recalled.
Lord Carloway 's view was that the tenor of Boris Johnson's remarks and the discussion around them - revealed in the documents - pointed to various factors being used to publicly deflect from the real reason for the prorogation.
He said: "It is very important to understand what this document is: this is a worst-case scenario which civil servants obviously have to prepare for, but in the last few months, and particularly in the 50 days since I've been Prime Minister, we've been massively accelerating our preparations".
We need a Queen's Speech, we need to get on and do all sorts of things at a national level, ' he said.Opposition parties fear Mr Johnson is determined to take Britain out of the European Union on October 31, despite the Benn Act, which says the Government must seek a further delay if there is no agreement on a deal with the EU.
Mr Johnson told the children that he had recently been discussing the possibility of constructing a bridge over the Irish Sea.
"All being well, we will be sitting in the Supreme Court in London next week".
The Guardian reported that the prime minister denied lying to the Queen over the suspension, insisting such claims were "absolutely not true".
The Government has since said it will appeal the decision and it will now be taken to the Supreme Court on Tuesday. "We need a Queen's Speech, we need to get on and do all sorts of things at a national level", he said.
Johnson has insisted that the country will leave with or without a deal on the date set.
Scotland's highest civil court ruled on Wednesday that the five-week prorogation was unlawful because it was obtained for the "improper goal of stymying Parliament".
More than a dozen including Lib Dem leader Jo Swinson and Labour's Hilary Benn later gathered outside the Palace of Westminster after the five-week prorogation was ruled illegal by a Scottish court.
With less than 50 days before Britain's planned exit from the European Union on October 31, Johnson added: "I'm very hopeful that we will get a deal at that crucial summit".
"I think that they are impartial, but I'm saying that many people, many Leave voters, many people up and down the country, are beginning to question the partiality of the judges".
The paper adds that the Scottish ruling does not compel the Government to recall Parliament, as opposition figures are demanding, but that to "press on regardless of the state of judicial opinion would be damaging for British public life, and possibly terminally so for Mr Johnson's premiership".