The Guardian view on deadlock in parliament: still time to thwart Johnson’s reckless deal | Editorial

'Brexit fatigue' is no reason to back a vision of Britain which fulfils the ambitions of the radical right

In the lead-up to parliament's historic Saturday sitting, the airwaves resounded to Conservative cries of "get this done", "let's move on" and "lift this cloud". The Tory hope was that understandable Brexit fatigue could become a trump card for Boris Johnson, as he sought to rush through a surprise deal that MPs were given 48 hours to consider. Sir Oliver Letwin's successful amendment, which withholds approval for it until all necessary legislation is passed, rightly put the brakes on - to the acclaim of up to a million People's Vote marchers. It also required Mr Johnson to write to the EU asking for an extension under the terms of the Benn act. This he has done, albeit dissociating himself from the request in a second letter (a Scottish court will examine the legality of that move).

MPs on all sides of the house must now hold their nerve to subject Mr Johnson's deal to forensic scrutiny, undistracted by his totemic Brexit deadline of 31 October. While the EU may not respond immediately to Britain's request for an extension, it must not conspire with Mr Johnson to allow a no-deal Brexit to take place at the end of the month. The prime minister may wish to dash for the line. It is absolutely not necessary or advisable for the rest of parliament to do the same. Three and a half years of deadlock, almost entirely caused by arguments between Tory leavers, does not mean that, suddenly, anything goes.