A head to head comparison of the Maryland 2018 General Election gives us an idea of the break down of the voters.
Ben Cardin received 1.49M (64.92 %) votes, beating Tony Campbell who gained 697.02k (30.34 %) by 794.6k votes in Maryland.
Ben Cardin won 12 counties out of the 24 counties that make up Maryland. The record shows that Tony Campbell won 12 counties.
During the 2018 general elections, over 2M total number of votes were cast. Arvin Vohra got 22,943 (23k) over Ben Cardin 1,491,614 (1M). He won the popular vote by 22,943 (23k). His victory in the State of Maryland (with 22,943 votes) represents 50.0% of his popular vote victory.
Top 15 Counties in General Elections
All Candidates (Senate General Elections)
These 15 counties play an important role in these Primary elections. If a candidate, can get a sizable majority in the largest counties (Montgomery, Prince George's and Baltimore), it becomes very difficult to win majorities in the smaller counties without voter outreach and increased voter participation in them.
Top 15 Counties Comparison in General Elections
Montgomery, Prince George's and Baltimore, three of the larger counties voted in favor of Ben Cardin, giving him a 525k vote advantage.