But they haven't drawn that line in the sand. They haven't ruled out the possibility of a customs union and single market arrangement. It's not what they want, but it's not off the table.As per Nigel Evans on BBC News, the Conservative Party are entrenched in defining what Brexit means and ruling out a customs union and a single market arrangement – even though this is still leaving the EU, which is all the referendum asked. So it is okay for one party to draw distinct lines in the sand, but when the rest of the house wants a line in the sand against a no deal, they are not serving the public interest.