Primary Vote Higher among Consistent Conservatives % voting in each primary.
The pattern was very similar in the 2010 primaries, based on voter records, but the estimated level of turnout is considerably lower than 2014 self-reports (25% of those matched to the voter file were recorded as voting in a primary). Consistent conservatives again stand out, with 48% recorded as having voted in a primary in 2010, compared with 32% among consistent liberals, 29% among those with mostly conservative views, 22% among those with consistent liberal views and just 14% among those with mixed views.
Primary Vote Higher among Consistent Conservatives  | % voting in each primary.  | 2010  | 2014  | (voter file)  | (self-reported)  | Total  | 25  | 38  | Consistently conserv  | 48  | 64  | Mostly conserv  | 29  | 46  | Mixed  | 14  | 29  | Mostly liberal  | 22  | 30  | Consiste ently liberal  | 32  | 49  | American Trends Panel (wave 7). Survey conducted September 9-Octol ber 3, 2014.  | PEW RESEARCH CENTER 