▁of ▁a ▁pro - Comm un ist ▁regime . ▁After ▁that , ▁the ▁MR P ▁became ▁the ▁largest ▁party ▁in ▁parliament ▁after ▁the ▁June ▁ 1 9 4 6 ▁legisl ative ▁election ▁( 2 8 . 2 %) ▁and ▁B id ault ▁took ▁charge ▁of ▁the ▁cabinet . ▁In ▁October ▁ 1 9 4 6 , ▁the ▁MR P , ▁together ▁with ▁the ▁S FI O ▁and ▁the ▁P CF , ▁presented ▁a ▁new ▁proposed ▁constitution . ▁It ▁was ▁approved ▁despite ▁De ▁Ga ulle ' s ▁call ▁for ▁a ▁" no " ▁vote . ▁One ▁year ▁later , ▁a ▁Ga ull ist ▁party ▁was ▁founded ▁under ▁the ▁name ▁of ▁R ally ▁of ▁the ▁French ▁People ▁( R ass emble ment ▁du ▁peu ple ▁français ▁or ▁R PF ). ▁ ▁The ▁MR P ▁became ▁a ▁main st ay ▁of ▁the ▁Four th ▁Republic . ▁It ▁was ▁al lied ▁with ▁the ▁Social ists ▁and ▁the ▁Commun ists ▁in ▁the ▁Three - part ies ▁al liance ▁until ▁spring ▁ 1 9 4 7 . ▁Then , ▁it ▁joined ▁the ▁Third ▁Force ▁that ▁brought ▁together ▁centre - left ▁and ▁centre - right ▁parties ▁against ▁the ▁Commun ists ▁on ▁the ▁one ▁hand ▁and ▁the ▁Ga ull ists ▁on ▁the ▁other ▁hand . ▁Two ▁Christian ▁Democr ats ▁led ▁the ▁cabinet : ▁Georges ▁B id ault ▁( J une – Dec ember ▁ 1 9 4 6 , ▁October ▁ 1 9 4 9 - J uly ▁ 1 9 5 0 ) ▁and ▁Robert ▁Sch uman ▁( Nov ember