Simplify the following text for a Grade 12 native English-speaking person.
Original: After the liberation of France in 1944 , the SFIO re-emerged in a coalition with a powerful French Communist Party ( PCF ) , which became the largest left-wing party , and the Christian democratic Popular Republican Movement ( MRP ) .
Simplified: After the liberation of France in 1944 , the SFIO had a coalition with a powerful Communist Party ( which became the main left-wing party ) and the Christian Democratic MRP .