Brexit supporters say a second referendum would trigger a major constitutional crisis.

The constitutional crisis in a core EU member-state is, of course, unfortunate.

Afghanistan has been plunged into a constitutional crisis over the election date.

In 2006, he called on judges to resolve a pending constitutional crisis.

This is the constitutional crisis that may lay ahead, warns Dr Newbold.

And it has the potential to blow up into a constitutional crisis.

We really seem to be facing a constitutional crisis, she said.

The UK is now in a full-blown political and constitutional crisis.

In 2006, the king called on judges to resolve a pending constitutional crisis.

The UK is now in the middle of a constitutional crisis.

It also threatened for a while to become a constitutional crisis.

The constitutional crisis had reached a head as soon as Parliament again met.

The Maldives islands are in the throes of a constitutional crisis.

And an election result that does not amount to a constitutional crisis, he said.

Again, not a secession per se, but a fictional state in constitutional crisis nevertheless.

To compound the biggest political and constitutional crisis in generations, a crisis of leadership.