Besides taxes, what other issues have both Rauner and Quinn been talking about?
Rauner is hitting Quinn with the crime prevention program scandal, the overall economic climate (unemployment, pension problems, businesses leaving,etc.), and Illinois' joke of an education system (also, Quinn cut $500M after promising not to), in addition to the raising taxes issue (which Quinn also said he wouldn't do).
Quinn is hitting back by saying Rauner is too rich to understand inequality (plus, minimum wage), would be the next Scott Walker, and is associated with poorly run nursing homes in Florida. Quinn is also making a pathetic foray into identity politics with the gay community and the obviously monolithic "women voters". Quinn also says Rauner isn't being specific enough.
It's a typical nasty, depressing Illinois race.