Why Did Hillary Clinton perform so strongly in the MI primary, just to lose them 8 years later?

[un]

Back in 2008, she was seen as the candidate on the Democratic side that appealed more to blue collar workers as well as having the edge with Hispanic voters, as opposed to Obama, who had a larger appeal amongst people of color and the youth. Michigan leaned more working class, so Hillary ended up doing quite well there, though much of her large margin is also due to Obama just not being on the ballot.

Fast forward to 2016, and a lot has changed. Obama is president, and Hillary is tied to him in many ways. However, Obama did have some appeal in Michigan, he won it twice, both by big margins. So much of it was just the perceiving that Hillary was an elite, and many in Michigan turned out for Sanders, whether it be due to his strength amongst the youth and working class, or just an anti-Hillary sentiment. Hillary kept it close due to her strength with people of color, a gain from 2008, but Sanders ended up pulling it out, a big upset at the time.

TL;DR: Hilary was perceived as a pro working class candidate in 2008 vs Obama, whereas she was viewed as more of an elite in 2016 vs Sanders.