[kiryandil]

What you are seeing in 2008 is republicans crossing over to vote democrat. They stayed home and voted in the republican primary in 2016.

LOL! The Republicans couldn't organize their way out of a wet paper bag.

No sale.

[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.