No plan can overcome the fact that the Conservatives don’t have the numbers in parliament to pass any version of Brexit.
The case of Ian Paisley Jr illustrates the formidable barriers.
Public opinion in Northern Ireland appears to be moving towards the collapse of the union.
The shadow international trade secretary claimed the risks to peace of a hard border are being “played up”.
The government barely has the legaslitive power for Brexit, let alone direct rule in Northern Ireland.
Theresa May has long since been criticised for taking little interest in the crisis at Stormont.
The decision point was actually in December.
Continued co-operation in areas including security and counter-terrorism may mean that a hard border in Ireland is a compromise that the EU is also willing to make.
Brokenshire's promising career has come to a sad end.
There may be trouble ahead for the Prime Minister.
Not all is as it first appears.