The opposition leaders have shown their anger and frustration at the PM for deciding to cancel the Commons vote over Brexit.
Her decision has left the UK on a knife edge, and she has not given a date for next vote, which could easily now be next year.
May has rushed to Brussels today to try and rework her deal with the EU leaders, however reports are they won’t budge on the existing proposal.
The letter, signed by Labour’s Jeremy Corbyn, SNP Westminster leader Ian Blackford, Liberal Democrat leader Sir Vince Cable, Plaid Cymru’s Liz Saville Roberts and co-leader of the Greens Caroline Lucas, says: “We believe that this deferral shows a contempt for parliament.”
It continues: “You admitted in the House that you are running from a heavy defeat on your deal in the House of Commons.
“It cannot be right that the government can unilaterally alter the arrangements, once this House has agreed on a timetable, without the House being given the opportunity to express its will.”
A key advocate for a second Brexit referendum, David Lammy MP, tweeted on Monday: “Theresa May has made a deal with the devil, trading her word and any remaining dignity she had left to delay the inevitable.
“Whether we vote next week or in January, her deal will not pass.
“It is time to legislate for a People’s Vote, to unblock our broken politics.”