"Question of Balance: Are Google News search results politically biased", published 14 years ago :
The data show that articles returned in Google News searches are more likely to have a bias
toward a particular candidate than those returned in searches on Yahoo News,
but there is no evidence of an overall conservative bias in search results on Google News, as has been suggested.
Both Google News and Yahoo News searches returned articles that were,
on the whole, equally favorable to both George W. Bush and John Kerry.
This is what one would expect to see of balanced search results at a time
when public opinion is evenly divided between the two candidates.
There is also an article "Is Wikipedia Biased?" from 2012. Sum up here : https://en.wikipedia.org/wiki/Ideological_bias_on_Wikipedia#...
[EDIT] About James O'Keefe who formed Project Veritas : https://en.wikipedia.org/wiki/James_O'Keefe#U.S._Presidentia...