Wikipedia articles about right-leaning public figures also tend to have more “prevailing associations of negative emotions” such as anger and disgust — in contrast with entries about left-leaning public figures that are more likely to include “positive emotions” such as joy, according to the author’s study.
In May 2012, the American Economic Review published a study which examined 28,000 articles about US politics on Wikipedia. According to the researchers, “Wikipedia’s political entries lean Democrat on average.”
Larry Sanger, who played a role in the launch of Wikipedia alongside Jimmy Wales in 2001, has said that “nobody should trust Wikipedia” because its army of left-leaning volunteers cut out any news that doesn’t fit their political agenda.