Citizens often seem to choose which political party to support by seeking out information based on their party affiliation, rather than based on informed opinion. Along with the explosion in new media in the US, trust in mainstream media has been decreasing, particularly amongst Republicans. This column presents a framework to analyse how beliefs regarding the mainstream media impact individual media choice and thereby influence electoral outcomes. A substantial political advantage accrues to the side with less exposure to or trust in mainstream media. This may provide one rationale for the fomenting of this distrust by party elites.