(Bloomberg) -- Prime Minister Michel Barnier warned that France has reached its “moment of truth,” as far-right leader Marine Le Pen is set to join a left-wing coalition to topple his government as soon as this week.Most Read from BloombergAs Wars Rage, Cities Face a Dark New Era of Urban DestructionRiyadh Metro Partially Opens in Bid to Ease City’s Traffic JamsSubscribe to the Bloomberg Daybreak podcast on Apple, Spotify or anywhere you listen.​​​​​​Le Pen’s National Rally as well as a leftist