Why did Paul Klee resign from the Bauhaus in 1931?

Paul Klee resigned from the Bauhaus in 1931 due to the increasingly onerous nature of his responsibilities at the school. By that time, his workload—which included biweekly lectures and various administrative duties—had become difficult to manage alongside the almost constant tension regarding policy and politics within the institution. Seeking a less demanding environment, he left to accept a position at the Dusseldorf Academy.