An article on PoliticsWeb compares the Rektoratsrede to the arguments of a chancellor at a South African university.

We know a good deal about Heidegger and his thinking at this time, partly because he had previously been both the teacher and the lover of the German Jewish political philosopher Hannah Arendt (who escaped the Holocaust, later writing On Totalitarianism and Eichmann in Jerusalem) and he had taught the libertarian Marxist political philosopher Herbert Marcuse (also Jewish) from 1927 to 1932. Heidegger was also rector at Freiburg when the future professor of history at the New School for Social Research in New York and at the City University of New York, Henry M Pachter (born Heinz Pachter, also Jewish), was a student there.

In 1932 Heidegger rejected Marcuse's post-doctoral dissertation, substantially on ideological grounds. In his Herbert Marcuse and the crisis of Marxism (Macmillan, London, 1984), Professor Douglas Kellner noted that Pachter "said it would be strange if Marcuse found Heidegger's involvement with National Socialism surprising because: (1) Nazi students filled Heidegger's classes and enthusiastically clamoured around him; (2) Heidegger's wife was an enthusiastic member of the party and supporter of national socialism; (3) at the Davon debate with Ernst Cassirer [a German Jewish philosopher] in 1929, Nazi students supported Heidegger and shouted down Cassirer with slogans and insults; and (4) Heidegger's lifestyle and thinking were sympathetic to fascist volkisch ideology: he wore Bavarian peasant clothes and affected peasant manners; he spent as much time as possible in his mountain retreat in Todtnauberg; and he was becoming increasingly nationalistic and political in the 1930s (conversation with Henry Pachter, New York, June 1980).

I hadn't come across the testimony of Henry Pachter before, nor his vignette about Nazis at Davos, in any of the accounts of that debate.  ¶ 11:00 PM