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If you watch/read/listen to pundits you'll see lots of polarization. Or go to Facebook and look at the comments on articles. Liberals are evil. Conservatives are dumb. You'll see all sorts of such comments.

Conservative media portrayed Obama as an extreme leftist when he was, in terms of policies, more in line with Eisenhower and Reagan. Look at the label of RINOs for Congressmen who vote the wrong way on a particular issue.

In the U.S. there is a lot of political polarization.