in the 2017 legislative elections, the pcf and la france insoumise, the movement founded by jean-luc mélenchon prior to the presidential election, failed to establish an alliance to run common candidates in the legislative elections. both subsequently decided to form separate parliamentary groups; chassaigne declared that the gdr would continue on 21 june, including 11 of its own deputies and 4 from overseas france, but would not oppose the initiatives of the la france insoumise group. mélenchon's insistence on voting discipline respecting his movement's program proved an obstacle in any potential alliance between the two. at the time of its formation on 27 june, the parliamentary group included 16 deputies.