Original sentence: " The magazine attempts to counterbalance that which its staff perceive as a predominant orthodoxy of social liberalism and political progressivism of the professors and staff at the university which they believe is confirmed by documented faculty donations to political candidates in the 2004 presidential election
Edited sentence: " The journal attempts to counterbalance that which is perceived as a predominant orthodoxy of social liberalism and political progressivism of the professors and staff at the university, documented in part by faculty donations to political candidates in the 2004 presidential election