Keir Starmer has given another one of his speeches that seems aimed at his own party rather than the general electorate. This one is about what Labour would do to encourage economic growth (or in his words, ‘growth, growth, and growth’). But it has garnered the most attention for a row about what the party wouldn’t do: nationalise things – a preoccupation of the left of the party, who argue that nationalising industries such as rail and water are popular policies with the electorate and sent voters Labour’s way in 2017.