Red America vs Blue America

Polarization is at historic highs at the national level. Everyone knows that.

But, closer to the ground, polarization is growing too. As WaPo's Dan Balz explains in a terrific piece today,  partisanship at the state legislative level is also soaring -- with a single party controlling all levers of state government in three quarters of the 50 states.

The chart below -- put together by the talented Kennedy Elliott -- shows how party control of each state has changed over time.

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