Heidegger joined the NAZIs before they captured the state and very much wished to have his own philosophy elevated as something like the official NAZI ideology - resigned his position when it became obvious that the NAZI wasn't interested in his approach. An ideologue by some definition is someone who produces ideas with the aim of furthering a movement, state or similar force. By that definition Heidegger was a NAZI ideologue though perhaps "would-be NAZI ideologue" would be more accurate.
Heidegger joined the NAZIs before they captured the state and very much wished to have his own philosophy elevated as something like the official NAZI ideology - resigned his position when it became obvious that the NAZI wasn't interested in his approach. An ideologue by some definition is someone who produces ideas with the aim of furthering a movement, state or similar force. By that definition Heidegger was a NAZI ideologue though perhaps "would-be NAZI ideologue" would be more accurate.