It's bad here in the Chicago suburbs, too. Honestly, it's the worst I've seen it and we don't watch TV. They mail us every day about the nasty things their opponents have done/will do. They come to the door to tell us. The Republican National Committee calls us every day to remind us a Democratic candidate supports illegal immigration.
Recently we got a flyer with a candidate shown as a puppet on strings being controlled by...I don't remember what. It's all lies anyway.
Only a few flyers have mentioned what they do support and would do for our district.