Why primary polls appear to be so inaccurate this year

Results in some high-profile races this primary season have differed greatly from public opinion polls. In the Michigan Senate Democratic primary, progressive Abdul El-Sayed had double-digit leads in polling but won over Haley Stevens by just one point. Lisa Desjardins and Courtney Kennedy of Ipsos discussed the recent results that were at odds with polling. PBS News is supported by -…