Why would he do that ? When your enemy is committing suicide it is wise not to interfere.
A vote of no confidence then? No, because that could easily precipitate a general election, and that's the last thing he wants.
This is the Leader of the Opposition. He has to do something.

A vote of no confidence then? No, because that could easily precipitate a general election, and that's the last thing he wants.
This is the Leader of the Opposition. He has to do something.
London has regained its first place in European equities trading since being briefly overtaken by Amsterdam, quashing "dreadful prophecies" about Brexit.
The news was met with a headline in France's BFMTV news channel stating, "London regains first place in European equity trading".
In reaction to this the president of French union UPR, Francois Asselineau, tweeted: "Not only is the post-Brexit apocalypse still not in sight, but it is in France and in the Eurozone where things are going from bad to worse."
He also tweeted: "This is yet another proof that the dreadful prophecies of the Europeanists about Brexit were nothing but bogus stories to scare children."
He really IS Britain's own lil' trumpJohnson has lied to the English queen
Johnson has illegally shut down parliament
Johnson has LOST all six parliamentary votes that he has contested.
Johnson has lied to the Bitish public
In short, Johnson is , in fact, guilty of unlawful acts and should- by any moral measure- hang his head in shame and fuck off.
Of course, the Incredible Hulk would simply stamp around and buy a new shirt. Haw, haw............................haw.
Let's see Johnson apologize and resign today at the United Nations gathering. ' Britain Trump' has become somewhat of an embarrassment to his namesake.