Washington Post Posted by Chris Cillizza and Aaron Blake President Obama ran — and won — in 2008 on the idea of uniting the country. But, each of his first three years in office have marked historic highs in political polarization, with Democrats… more »

Ranks as fourth-most-polarized year for a president since 1953 by Jeffrey M. Jones Gallup 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 reg… more »