David Brady of Stanford University talks with EconTalk host Russ Roberts about the state of the electorate and what current and past political science have to say about the upcoming midterm elections. Drawing on his own survey work and that of others, Brady uses current opinion polls to predict a range of likely outcomes in the House and Senate in November. He then discusses the role of recent health care legislation in the upcoming election as well as Obama's approval ratings. The conversation concludes with Brady's assessment of how Congress might deal with the demographic challenge facing entitlement programs.