This illustrates 2 things:
I) after months of people saying that EU membership doesn't limit Labour plans McDonnell has, only now, when #Brexit is at risk, gotten round to proving this for himself - what on earth has he been doing in the meantime?
"He's biding his time, he's keeping his powder dry, he really supports soft Brexit"
Well, he wasnt
Which illustrates that they have been doing exactly what remainers said they were doing, and were ignorant & complacent in doing so
Labour L'ship has been quietly supporting hard #brexit because they were either too Eurosceptic or too lazy to check if the EU hindered their plans
On the biggest issue facing the country & with an incompetent zealot driven Gov. in charge the "new, straightforward politics" will, as policy, sit on the sidelines & make ambiguous noises to avoid a position
End/