it was richard carmonna and i was his boss. carmona is not who he seems.h anger, with ethics, and with women. >> nbc news senior political editor mark murray joins me to talk about this and other closely watched races. mark, good morning. >> good morning, chris. >> polls show this race to be neck and neck. carmona is ahead by four. they face off in their second debate tonight. i've never seen an ad quite like the one we just looked at. is there an indication that it's moving the needle. >> it's a brutal ad. sometimes these do move the needle particularly in a state like arizona who isn't seeing a whole lot of presidential ads. voters don't know a lot about jeff lake and richard carmona. it could move the needle. i'm more interested in why lake is running this ad. it shows this is a jump ball race. >> in connecticut, mcmahon is meeting in a debate. there's a negative and expensive campaign in a senate race. joe biden was in connecticut supporting congressman chris murphy. how has linda mcmahon's money influenced the race. >> that can buy you a second chance