PRINCETON, NJ -- President Barack Obama's job approval ratings were even more polarized during his second year in office than during his first, when he registered the most polarized ratings for a first-year president. An average of 81% of Democrats and 13% of Republicans approved of the job Obama was doing as president during his second year. That 68-point gap in party ratings is up from 65 points in his first year and is easily the most polarized second year for a president since Dwight Eisenhower. Ronald Reagan and Bill Clinton are the only two presidents prior to Obama who...