This has not been a good week for Boris Johnson.

The Conservative Party has been battered by allegations that some of its MPs are on the take.

The way the prime minister has reacted to the situation has been publicly criticised, and privately slammed by many on his own side.

Even some of Boris Johnson's most stalwart backers in parts of the Conservative press have called foul.

But if you think this has been bumpy, it's not impossible that the government might find itself in a much more dramatic and risky situation with much further-reaching consequences for us all.