 The leader of the conservatives in parliament, Thiers, spoke for moderation, arguing that France had won the diplomatic battle and there was no reason for war, but he was drowned out by cries that he was a traitor and a Prussian.Napoleon's new prime minister, Émile Ollivier, declared that France had done all that it could humanly and honourably do to prevent the war, and that he accepted the responsibility "with a light heart".A crowd of 15,000–20,000 persons, carrying flags and patriotic banners, marched through the streets of Paris, demanding war.