announces it will stop selling handguns and certain ammunition in the wake of the odessa, texa shooting. chicago's democratic mayor saying the gun violence problem is the result of republican lai state. we are tracking both those threads for us tonight. >> we have heard so much about this latest mass shooting in texas, but this weekend in chicago seven people were kille and 34 wounded in 29 separate incidents in just one weekend. it got the attention of texas senator ted cruz and he's in a heated dispute with the city's democratic mayor. >> as pressure mounts on congress to pass some form of gun-control republican crew senator ted cruz said it doesn' work look at chicago disarming lie abiding citizens is not the answer the tweet prompted a swift response from chicago's mayor who fired back that 60 percent of illegal firearms recovered in chicago come from outside illinois. mostly from states dominated by