Why did the polls miss so badly in Michigan?

The recent polls in Michigan significantly overestimated Abdul El-Sayed’s lead by 12 percentage points, highlighting a notable discrepancy in statewide primary predictions. This isn't a new phenomenon in primary contests, but it raises questions about the reliability of polling methods. This matters because it underscores the challenges pollsters face in capturing the true voter sentiment, especially in a diverse electorate. Understanding these inaccuracies is crucial for improving future polls and ensuring more accurate representation of voter preferences.