dispute

Trump said there could be "no dispute that Syria used banned chemical weapons".

There is also a dispute around the figures used to calculate the changes.

The pay dispute could also spread to include the Northern Ireland Civil Service.

At the request of Egypt's President Abdul Fattah al-Sisi - described by Trump as "my favourite dictator" - then-Treasury Secretary Steven Mnuchin took charge of mediating Egypt’s dispute with Ethiopia over the Nile waters.

This dispute was predicted six months ago by Northern Ireland’s budget watchdog, the Fiscal Council.