The Health Services Union (HSU) expenses affair was a protracted political scandal that, 2006 to 2011, revealed the criminal activity of former HSU national secretary and former Labor politician Craig Thomson as well as former national president and former general secretary of HSU East Michael Williamson.
In 2008 Kathy Jackson succeeded Craig Thomson as general secretary of the HSU. Jackson’s role in the HSU scandal provides us with an intriguing case study on the relationship between politics and cognitive dissonance.