OTTAWA — It wasn’t a hard sell for David Graham to recruit Liberal colleagues for a new Parliament Hill research body. “[I said] ‘I want to talk about digital issues. Who’s with me?’” Graham, Liberal MP for Laurentides-Labelle, recalled during an interview. “There’s an immense interest, so it wasn’t difficult at all to get started.” That interest led to the January formation of the digital infrastructure caucus, a subset of roughly 40 Liberal members of Parliament and staff, chaired by Graham, with a shared goal of taking...