3D Plots 'Outliers'

Andrew Kohut announces that he will step down as president of the Pew Research Center at the end of the year.

Nate Silver finds that political science models have failed at making presidential predictions, John Sides responds, Jonathan Bernstein has more, Andrew Gelman fears that casual readers may miss an important point.

Seth Masket charts and compares the pace of delegate accumulation by Romney in 2012 and McCain in 2008.

Peyton Craighill argues that Romney's delegate challenge is less about "very conservative voters" and more about the backloaded calendar.

Resurgent Republic profiles the "disillusioned Obama young voter."

David Hill takes Republicans to task for cherry picking healthcare reform polls; Mark Mellman agrees that healthcare reform is not an 80/20 issue.

Frank Newport explores the paradox of public opinion and the Affordable Care Act.

Alan Abramowitz' congressional forecasting model predicts a small Democratic gain in the House and a possible Republican takeover in the Senate.

ReTargeter explains why social media couldn't predict Super Tuesday.

Carl Bialik reports on 60 Republican members of Congress challenging the mandatory status of the U.S. Census.

Google can now plot 3D equations (via @flowingdata)