The multi-step flow theory assumes ideas flow from mass media to opinion leaders before being disseminated to a wider population. This theory was first introduced by sociologist Paul Lazarsfeld et al. in 1944 and elaborated by Elihu Katz and Lazarsfeld in 1955. The multi-step flow theory also states opinion leaders are affected more by “elite media” than run-of-the-mill, mass media. This is evident by political opinion leaders receiving their information from unconventional sources such as The Huffington Post, instead of Fox News or MSNBC.