Yeah, I wonder, too. Auferre, trucidare, rapere, falsis nominibus imperium; atque, ubi solitudinem faciunt, pacem appellant.
According to Le Monde today, it seems the former UDF centrists and liberals who joined the UMP in 2002 complained and threatened to form an independant group at the National Assembly from the UMP, which is why they got good representation in the government. Auferre, trucidare, rapere, falsis nominibus imperium; atque, ubi solitudinem faciunt, pacem appellant.