Saturday's Final Say rally is expected to draw huge crowds of people to the capital calling for a vote on any EU withdrawal deal. The march will take place nearly a fortnight before the UK is due to leave the EU on October 31, and at the end of a crunch week for Brexit negotiations.
Organised by the People's Vote campaign, Together for the Final Say is the fourth march calling for a final referendum on any Brexit deal to be put to the people.
 
Here's everything we know about Saturday's demonstration.

When is the march taking place?

Campaigners are being told to meet at on Saturday October 19, at 12pm, with the march itself setting off at around 12.20pm. The head of the march is expected to reach Parliament Square at about 2pm, followed by a speakers' rally lasting 90 minutes. Not only is the date 12 days before the October 31 Brexit deadline, it is also the same date specified in the Benn Act as the deadline for a parliamentary Brexit deal vote.
And this weekend, an emergency Saturday sitting of Parliament could also go ahead for the first time since the Falklands War, meaning protestors could be gathered outside the Commons as MPs attempt to pass a Brexit deal inside. ************************************************************************************************************************************** What the last three and a half years of EU funded antidemocratic sabotage and legalistic shenanigans has done ,besides bollox up all other parliamentary business and the heretofore generally accepted norms of UK constitutional praxis, is utterly eviscerate a sense of what used to constitute Realpolitik. 
 
What we have in its place, is a intellect-free routine of pseudo-moralistic posturing and exchanges of mutually incomprehensible grievances that are dressed up as if they were in fact hard political choices to be resolved in the white heat of firmly delineated ideological standpoints.
 
Out going EU Grand Panjandrum ,Juncker stated explicitly that there is no need for the British parliament to vote down this "Deal" and force the PM to seek yet another extension because the EU in total as a unified whole want this and accept this as " The Deal " which requires no further negotiations and therefore no requirement for a request for an extension.
 
Game over.The so-called Benn Act isn't worth the paper it is written or rather the back of the envelope it was scrawled on in the dim light of the treasonable cabal's cellar. This is Congress of Vienna stuff ; proper grown up this is a how the world will work from now on addition to the playbook of established European Grand politics.
 
But not according to the self-defeating dimwits of Labour ( all wings and sections thereof ),the LibDems,SNP and now from the other side of the Leave/Remain dichotomy the DUP and the Brexit Party.
Piss off the lot of you, please.The Circus is over and the clowns have taken off their make up.There will be no curtain call.
 
The massed ranks of Waitrositas are in town at the same time as their younger off-spring in the guise of yet another hostile foreign power funded protest , Extinction Rebellion are maintaining their irksome deranged presence with the full assistance of the Home Office,The Mayor and the massed ranks of the overtime payment grasping Met Plod.
 
And so it goes...