[Lakewood]

2008 Democratic Primary Exit Poll:

Democrat 62% Republican 9% Independent 28%
http://www.cnn.com/ELECTION/2008/primaries/results/epolls/#WIDEM

2016 Democratic Primary Exit Poll:

Democrat 71% Republican 2% Independent 27%
http://www.cnn.com/election/primaries/polls/wi/Dem

2008 Republican Primary Exit Poll:

Democrat 5% Republican 73% Independent 23%
Same source

2016 Republican Primary Exit Poll:
Democrat 6% Republican 65% Independent 28%
Same source

Your analysis was flawed. It is quite obvious what occurred. Republicans crossed over in 2008 and stayed in the Republican primary in 2016.

[kiryandil]

You're confused, and don't understand the mechanics of the Democrat Big City vote factories.

That's where the action is at, not "exit polls" or "opinion polls".