Belloc took a leading role in denouncing the Marconi scandal of 1912, in which government ministers were caught insider trading. Belloc emphasized that key players in both the government and the Marconi corporation had been Jewish. Jewish historian Todd Endelman identifies Catholic writers as central critics. In his opinion:The most virulent attacks in the Marconi affair were launched by Hilaire Belloc and the brothers Cecil and G.K. Chesterton, whose hostility to Jews was linked to their opposition to liberalism, their backward-looking Catholicism, and the nostalgia for a medieval Catholic Europe that they imagined was ordered, harmonious, and homogeneous. The Jew baiting at the time of the Boer War and the Marconi scandal was linked to a broader protest, mounted in the main by the Radical wing of the Liberal Party, against the growing visibility of successful businessmen in national life and their challenges to what were seen as traditional English values.A. N. Wilson's biography expresses the belief that Belloc tended to allude to Jews negatively in conversation, sometimes obsessively. Anthony Powell mentions in his review of that biography that in his view Belloc was thoroughly antisemitic, at all but a personal level.