This article in the Prospect does a good job delving into the elitism that is the crux of Coons unwillingness to represent regular Delawareans in the US Senate.
Coons does want the Senate to change – by becoming even more conservative than it already is. Along with Republican Senator Susan Collins of Maine, Coons organized a letter, signed by 61 senators, pledging to keep the filibuster in place, which would make any sort of progressive legislation that much harder should Democrats take control of the government next year. In September, during a discussion about the Senate and bipartisanship with former Senators Joe Donnelly and Jeff Flake, Coons suggested that it might not be possible to have a Senate that’s both diverse and doesn’t “produce irreconcilable discord.”