The Dutch government collapsed on July 7 after failing to reach a deal on restricting immigration, which will trigger new elections in the fall. Tensions came to a head last week, when Mr. Rutte demanded support for a proposal to limit the entrance of children of war refugees who are already in the Netherlands and to make families wait at least two years before they can be reunited. The proposal went too far for the small Christian Union and liberal D66, triggering a stalemate.