to sail to victory, be the tea party s best hope of bringing down an incumbent in the gop. but now his campaign is wrapped up in a downright bizarre scandal. dana bash is outfront with the story. reporter: a conservative blogger is in jail, arrested for breaking into this mississippi nursing home to photograph u.s. senatored that cochran s ailing wife, suffering from dementia. it s the worst. reporter: in gnaw ad, cochran s campaign points fingers at his gop challenger, chris mcdaniel. posting video of senatored that cochran s wife in a nursing home? had enough? reporter: and it gets even deeper in the mississippi mud. cochran supporters argue the reason the blogger took his wife s picture was to feed questions about cochrane and long-time aide kay webber, who has traveled extensively with the senator on the taxpayer dime. cochran calls it part of her job and suggestions of anything untoward sexist.