The UK has announced it would raise the minimum salary threshold for a skilled worker visa and prevent overseas health and social care staff from bringing family dependents to Britain. Prime Minister Rishi Sunak’s office trumpeted the proposals as “the biggest clampdown on legal migration ever”. But critics said it would damage the state-run National Health Service (NHS), which faces staff shortages. Immigration is set to be a key issue in nationwide elections that must be held by January 2025 at the latest, and which the main opposition Labour party is currently...