PARIS—French Prime Minister Michel Barnier faces a pivotal no-confidence vote Wednesday that risks toppling his government and derailing France’s efforts to get its public finances back on track. Barnier’s government,

France's far-right leader Marine Le Pen says she will seek to topple Macron's prime minister, Barnier, in the French parliament.

French lawmakers are voting on a no-confidence motion that could bring down the prime minister and the government for the first time since 1962.