LONDON—Britain’s Parliament is crumbling—shored up by scaffolding, patched by endless repairs. And after a week of upheaval over Brexit in the House of Commons and angry exchanges on the streets outside, Britain’s democratic system is looking a bit shaky, too.
In the Commons chamber, Prime Minister Theresa May suffered the biggest defeat in Parliament’s history over her European Union divorce deal, narrowly survived a no-confidence vote the next day and was left scrambling for a workable new Brexit plan.
