MONTREAL — Luc Rabouin has been elected leader of Projet Montréal, the governing party at city hall, and will succeed Valérie Plante and run for mayor in municipal elections in November.

Amid a year of seismic immigration changes in Canada, many migrants have seen their journeys upended and dreams shattered.

A Canadian woman detained for nearly two weeks by immigration officials in the United States is back on home soil, her mother ...