France’s Macron Dissolves National Assembly After Le Pen Victory in European Vote

PARIS—French President Emmanuel Macron said he was dissolving France’s National Assembly in a surprise move that scrambled the country’s political firmament Sunday after Marine Le Pen’s far-right party trounced his forces in European elections.

Macron said the country will hold new elections for the lower house of the French parliament on June 30 and July 7, a high-stakes maneuver that stunned a nation already reeling from projections based on early ballot counts for Sunday’s elections for the European Parliament. The projections showed National Rally garnering around 31% of the vote, the highest score ever for the far-right party in European elections, and twice the support for Macron’s Renaissance Party.