Kamala Harris's Ascent Shows How Political HardballAnd Smart PollingPays Off
Briefly

Political elites pushed Joe Biden out of the race, arguing Kamala Harris could galvanize voters better. However, polling data at the time didn’t guarantee this outcome would improve Democratic chances.
In hindsight, the improvement in Democrats' polling once Harris became the nominee seems to validate party leaders' decisions. But foresight regarding this outcome was not evident beforehand.
Read at www.scientificamerican.com
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