Translate the following English sentence to French:
"But how is the Commission supposed to support international organisations with an exclusively political mandate when these organisations find it difficult to properly implement the administrative and financial standards of Community aid programmes?"
Mais comment la Commission peut-elle assurer le soutien d'organisations internationales ayant un mandat exclusivement politique, si ces organisations ont des difficultés à appliquer les normes administratives et financières des aides communautaires ?