president of the united states back in 1901 and this was after the assassination of president william mckinley and in 1968 after bobby kennedy was assassinated, he was running for the democratic presidential nomination, the secret service extended their protection to major presidential candidates. now, herman cain on the campaign trail will have secret service protection. the good thing for him in some ways is that it will not cost him any money. he will not have to pay for private security. the bad things is he will not be able to have that touchy feel that you get on the campaign trail. more under locked by the secret service agents. >> then you will remember that kind of protection was extended to president barack obama when he was candidate obama, as well. meantime, iowa caucus right around the corner. it has been a pretty long campaign, thus far. is it taking a toll on any of these candidates in particular? if so, how? >> i think so, fred. i think if you look at all the candidates right now, they're getting very fitired and we tald about the brain freezes and talked about the moments in t