Mark Carney is involved in discussions about a bridge between Canada and the US, specifically the Gordie Howe bridge. The terms of the bridge's toll sharing arrangement are unclear, with some reports suggesting Canada will not share tolls with the US until a debt is repaid, while others indicate a deal to split toll profits. The details of the agreement are not fully disclosed, with some outlets reporting on a confidential deal and a document that reveals how the bridge deal works.