election you re going toing spending your time doing that and we have much more important things to do. reporter: carson believes he s being thoeld a higher level of scrutiny because he s doing so well in the polls. here s what he told cbs earlier this morning. no question i m getting special scrutiny. a lot of people very threatened and then you know they seen the recent head-to-head polling against hillary and how well i do. they re worried. there s no question about it. and you know, every single day or every other day or every week they re going to come out you said this when you 13 and you did this and the point is to distract, distract the populous, district me. reporter: this tees up an interesting backdrop in the upcoming debate in wisconsin. i asked carson how his mind-set is going into the debate given the past week. he said he s digging in on issues, economic and foreign policy, and, no, he s not