Insurgent parties like Reform U.K. surged at the polls this week. But the British electoral system wasn’t built for multiparty democracy.

Editorial: Local and devolved elections will reveal fragmented party allegiances that cannot be fairly represented in parliament via first past the post

Insurgent parties like Reform U.K. surged at the polls this week. But the British electoral system wasn’t built for multiparty democracy.

Last week’s elections may come to be seen as the moment Britain’s two-party system finally disintegrated. Not because Labour and the Conservatives disappeared overnight, but…