More than 1,000 people live in dirty, rat-infested underground flood tunnels way beneath Caesar's Palace at The Luxor casino hotels. Disease and highly poisonous spiders are the major concern. Begging and 'dumpster diving' for food is how they survive. Many of those who call this home are former war veterans or those who came to Las Vegas in pursuit of the American dream. Drink, drugs and depression are now their way of life. So, who do the residents of underground Vegas want to win on Tuesday? I'll be finding out as I spend the next few days broadcasting for Sky News from Nevada.