The motions were brought forward after Mr Barnier used controversial article 49.3 to push through part of the 2025 budget without a vote in parliament on Monday (December 2).
The use of this article – mostly related to financing and social security bills – opens up a prime minister to a motion de censure (vote of no confidence), that can be filed within 48 hours.
If no motion is filed – or if one is filed and does not receive the backing of a majority of MPs in the chamber, 289 or more – the bill is automatically passed.
Mr Barnier’s use of the article on Monday was his first, however it has been used over 100 times by his predecessors.
It was used a record 28 times by Michel Rocard, prime minister under François Mitterrand.
It has been used sparingly since the early 1990s and did not attract major attention until the prime ministership of Elisabeth Borne.