00455pab a2200145 454500008004000000100001600040245012400056260000900180300001400189362000800203650001900211700002100230700002500251773003300276180718b2011   xxu||||| |||| 00| 0 eng d  aTedin, Kent  aWhen the President goes public: The consequences of communication mode for opinion change across issue types and groups  c2011  ap.506-519  aSep  aPublic opinion  aRodgers, Harrell  aRottinghaus, Brandon  aPolitical Research Quarterly