after wrs dropped out, it was clinton facing trump. >> i wasn't enthusiastic about either one. after the debate, he also decided, yes for clinton and no for trump. >> he reminded me of richard nixon. the reason being is that it just looked like he was hiding too much from the get-go. >> donald trump's nevada campaign stops on this day are part of the effort to stop clinton's momentum in the state. >> and many trump supporters fervently believe the upcoming debates can do just that. >> i think it is issues that he'll win nevada. >> i have to have faith in humanity and people and i think they'll realize that she is crooked. >> rob klein says his decision is final. >> is it a weird feeling knowing for the first time you won't vote for a republican for president? >> yes, it is.