Dissatisfaction with the direction of the country, antipathy toward federal government activism and opposition to the Democrats' health-care proposals drove the upset election of Republican Sen.-elect Scott Brown of Massachusetts, according to a new post-election survey of Massachusetts voters. The poll by The Washington Post, the Henry J. Kaiser Family Foundation and Harvard University's School of Public Health underscores how significantly voter anger has turned against Democrats in Washington and how dramatically the political landscape has shifted during President Obama's first year in office/Washington Post. More here.

Question: Why has the political landscape changed so much?