In 1920, Hugenberg founded a populist tabloid, the "Berliner Illustrierte Nachtausgabe", which became his most profitable newspaper, having a daily circulation of 216, 000 by 1929. In the cities such as Berlin, the Hugenberg newspapers had to compete with the liberal newspapers owned by the Ullstein and Mosse families, and the Hugenberg media empire was most influential in the small towns and rural areas of Germany where the newspapers owned by Hugenberg were most people's main source of the news.. Even in areas where Hugenberg did not own the newspapers, the local newspapers were dependent upon the Hugenberg-owned "Telegraphen-Union" (TU) for news outside of their areas; about 600 newspapers in the rural areas and small towns of Germany exclusively reprinted articles written by TU journalists for their national and international news. Through Hugenberg was often described as representing the interests of the industrialists, Leopold wrote: "His nationalist insistence on autarchy and his diametrical opposition to all forms of unionism represented not the attitude of most businessmen, but the ideology of the Pan-German League. No longer concerned with the profits and losses of any industry other than his media empire, Hugenberg was free to criticize the immediate demands of industrialists for practical solutions and he reverted to the simplistic solutions espoused by the Pan-Germans since the prewar war". Hugenberg's Social Darwinist views remained unchanged as he argued that the "survival of the fittest" should become "the life principle of development", a stance that put at odds with the leaders of the left-wing of the DNVP such as Hans Schlange-Schöningen, Gottfried Treviranus, Walther Lambach, and Gustav Hülser, men who shared his vehement opposition to Marxism, but were opposed to his harsh Social Darwnism.