In 1938, Father Coughlin broadcast an anti-Semitic diatribe on American radio. Coughlin was a Roman Catholic priest from Michigan, and one of history's first evangelists to preach via the mass media. At its peak in the early 1930s, his radio show had a listening audience estimated at one-third of the nation. Yet Coughlin's broadcasts became increasingly anti-Semitic, expressing sympathy for Hitler and promoting The Protocols of the Elders of Zion. It was only a few weeks after Kristallnacht, when synagogues across Germany were burned, that Coughlin caused a scandal by broadcasting a diatribe in which he blamed the Jewish victims.