[1][2][3] From 2007, De Rugy represented the Loire-Atlantique department, with an interruption between 2018 and 2019, originally as a member of the Democratic and Republican Left group, which includes his former political party Europe Ecology – The Greens.

In 2016, De Rugy announced a campaign for the 2017 Socialist Party presidential primary in which he secured 3.8% of the vote in the first round, outstripping polls.

[7] Though he promised to support the primary winner, he reneged on that commitment in late February, instead backing Emmanuel Macron over Benoît Hamon.

On 27 June 2017, De Rugy was elected President of the National Assembly after being chosen as candidate by the La République En Marche group with 353 votes (out of 577 members).

[11] On 10 July 2019, online magazine Mediapart revealed that €63,000 of public money had been spent on refurbishment of De Rugy's official apartment in Paris (including €19,000 on a dressing room).

[16] In February 2022, De Rugy announced that he would not stand in the 2022 elections but instead resign from active politics by the end of the parliamentary term.

[18] In 2023, he was appointed by Spanish investment bank Alantra to co-chair the firm's newly established Energy Transition Group, alongside Nemesio Fernández-Cuesta.