Would like to point out the top three donors to Martin Sandoval's last campaign.
Chicago Laborers District Council: $27,000.00
Chicago Land Operators Joint Labor-Management: $22,000.00
ILLINOIS AUTOMOBILE DEALERS ASSOCIATION: $21,000.00
Also there is:CHICAGO AUTO TRADE ASSOCIATION: $10,000.00

And out of $804,566.32 funds raised only $50,000 came from individuals. The rest came from companies and groups in state as well as out of state. $287,000 comes from "other" in the campaign finance records
So he does NOT represent individual voters, but Corporations.
https://votesmart.org/.../campai.../33648/martin-sandoval