Analysis: Slimy politics in Mississippi

(CNN) – The Republican Senate primary in Mississippi is next month, and things have gotten really ugly.
Incumbent Senator Thad Cochran is facing a strong tea party challenge from lawyer, radio commentator and Mississippi state senator Chris McDaniel.

Cochran's wife suffers from dementia, and a conservative blogger has been charged with taking a picture of her inappropriately.

Blogger's arrest shakes up Mississippi Republican primary

Has there been a time when a campaign got this ugly?

The New York Times' Jonathan Martin weighs in on CNN's "The Lead with Jake Tapper," and also talks about the big winners – and losers – from Tuesday night's primaries.