Translate the following English sentence to French:
"But I think that Mr Nielson is equally well placed to answer me because he has been standing by his colleague' s side and he also said that both Commissioners were responsible for the proposal."
Mais je pense que M. Nielson pourra lui aussi me répondre car il se tenait à l'instant aux côtés de son collègue et a déclaré que les deux commissaires étaient responsables de la proposition.