00409pab a2200133 454500008004000000100002100040245010600061260000900167300001400176362000800190650002200198700002200220773003300242180718b2009   xxu||||| |||| 00| 0 eng d  aClaasen, Ryan L.  aPolicy polarization among party elites and the significance of political awareness in the mass public  c2009  ap.538-51.  aSep  aPolitical parties  aHighton, Benjamin  aPolitical Research Quarterly