Europe: Thunder on the Right

European voters revolted against their political leaders in last week’s continent-wide parliamentary votes.  The result was a bombshell:  right-wing parties made huge gains, shaking the existing order to its foundations and sending warning signals to voters in the US, Britain, and Canada.

France’s president, Emmanuel Macron, called a surprise election in the hope of undoing the lurch to the right.  Right-wing parties in Austria, Belgium, Holland, and Germany scored smashing victories over conven...