Alegrias, Yes, I was wrong abou tthe protocol. I was confusing it with clauses in the GFA, which any change to the protocol could endanger.
Namsnanny Being PM didn't work for Cameron because respectable businesses saw him for what he was. That is why he got involved with a dodgy company like Greensill.
I cannot see why it should be any different with Johnson. Cameron had problems with out the burden of being known to be a serial lier and cheat, which Johnson has.
Tony Blair is a very interesting case. He was respected on the international stage in a way he wasn't in the UK. I could never bring myself to vote for him. In fact he was why I didn't vote Labour in 1997, but his skill in dealing with Northern Ireland, not a perfct solution, but one that has worked, plus his involvment in the Middle East did win him international respect and kept him in business after he retired. I would also not underestimate the power and influence of his wife, who is far cleverer and canny than many give her credit for. Nothing against Mesdames Cameron and Johnson, but neither of them as astute or as clever as Mrs Blair.