One of the more interesting data points is “second choice by candidate”.
Basically, supporters of Harris, Warren and Buttigieg would migrate more heavily to one of the other two were their candidate to drop out.
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A candidate will drop out. Their supporters will choose a replcement candidate from the remaining field. And repeat.
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On the other, a disproportional share will likely migrate to candidates other than those two...
...and that will create a sensation of momentum as the trailers narrow with the leaders.
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