France's new left-wing bloc is set to become the largest opposition force in parliament, but staying united will present an early test as President Emmanuel Macron's majority seeks allies on the moderate left to push through his reform agenda.
Macron was on course to lose his absolute majority in the National Assembly after projections pointed to a hung parliament that would see the leftist Nupes alliance winning 175 to 200 seats, almost tripling the score of its combined parties in 2017.
