Prime Minister Mark Carney was repeatedly the target of his opponents. President Trump’s threats on Canada loomed over the debate.

The two sides set an agenda for additional negotiations in the coming days, which could include technical details on uranium enrichment.

President Trump’s trade war is expected to slow economic growth across the globe this year, in large part because his aggressive use of tariffs is likely to weigh heavily on the United States, the world’s largest economy. The economic projections …