As you know, Downing Street source told me reason for Brexit talks breakdown was ⁦@Theresa_may⁩ could not accept the proposed “backstop to the backstop”. But impeccable source tells me “backstop to the backstop” was a UK idea. Farce or tragedy? pic.twitter.com/8gUoM7JnGC

— Robert Peston (@Peston) October 15, 2018