“…Moreover, despite the fact that at least two-thirds of adults identify themselves as liberals or conservatives, only a minority of citizens can accurately think about politics in the abstract ideological language of liberalism versus conservatism (Campbell et al, 1960;Delli Carpini & Keeter, 1996;Erikson & Tedin, 2003;Stimson, 2004; but see Jost, 2006, for another perspective on being ''ideological''). However, research also suggests that political elites and members of the mass public with high levels of political expertise-who are more likely to have learned the ideological language elites use to discuss politics-are more likely to correctly understand and use ideologies to structure their attitudes (resulting in higher levels of ideological consistency among attitudes, a stronger tendency to conceptualize politics in ideological terms, and so on; see Campbell et al, 1960;Converse, 1964Converse, , 2000Delli Carpini & Keeter, 1996;Erikson & Tedin, 2003;Federico, 2007;Federico & Schneider, 2007;Judd & Krosnick, 1989;Kinder, 2006;Lavine, Thomsen, & Gonzales, 1997;Layman & Carsey, 2002;Zaller, 1992). Thus, although various prepolitical variables may play a role in citizens' ideological affinities, it is also clear that citizens vary widely in the extent to which they understand the ideological attitude systems they have to choose from in the first place.…”