After negotiating a Brexit deal with the European Union that few thought he could pull off, the UK Prime Minister returned to London, hoping for another spectacular success in Parliament.
Meanwhile, the government introduced the Withdrawal Agreement Bill (WAB), the piece of legislation that will enact Johnson's deal.
Every part of Johnson's deal can now be amended in Parliament with whatever shades of Brexit that MPs wish to attach to it.
But the European Parliament will not ratify the EU Withdrawal Agreement before the British Parliament does it, an EU official said on Monday.
With confusion in Parliament, intrigue in the courts and protests on the streets, Brexit seems a long way from a conclusion.