To recap everything that's happened, it's been 7 years since the French voted for Macron, he was against the national party in the presidential elections, and the national party came out on top in the European elections a month ago. 

Macron couldn't believe it and decided to dissolve the assembly and leave the choice again to the French people. 

The national rally came out on top in the 1st round of the legislative elections 1 week ago, so a coalition was formed, a left-wing communist-socialist-ecologist bloc to face the national party, and they won, but without a majority of seats in the assembly, so France could be ungovernable during the next 3 years