Looks like plagiarism to me. In fact isn't that the second formula he's pinched in a short space of time?
RT @euromove: At Labour Conference 3 weeks ago, European Movement took our message that we are in the Battle for the Soul of our Country to Labour members.

Today, @Keir_Starmer addressed the @The_TUC with the same message. We're flattered, but the message is clear:

We must win!

🐦🔗: https://nitter.eu/catherinerowett/status/1583103937884094464