Ben Jealous only had a 44-39 favorable rating in Maryland, much lower than the average Dem. This shows that he was out of the mainstream of many Maryland dems.
Compare his rating to Ben Cardin. Ben Cardin had a 60-26 favorable rating.
Larry Hogan, meanwhile, had a 71-22 favorable rating.
Support for raising taxes for public schools was only 44% approve - 55% disapprove in Maryland. Taxes for infrastructure, however, had 51% approve - 48% disapprove.
All numbers can be found here
https://www.foxnews.com/midterms-2018/voter-analysis?filter=MD&type=G