CALGARY— Newly-elected British Prime Minister Keir Starmer was offered advice last week by one of his predecessors, Tony Blair, who noted the difference between being the Great Persuader and the Great Chief Executive.

In a column in the London Sunday Times, Blair said the former is about speeches, slogans and the performative arts of a campaign, while the latter is all about policy and delivery. “Guess which is harder?” he asked rhetorically.