Obama Leads in Las Vegas elections odds at SBG Global. Las Vegas elections odds enthusiasts are keeping a close eye on the elections as well as the polls as the elections draw nearer.Currently, the online political betting odds hold Senator Obama as the favorite at -240 and Senator McCain at +170. It seems that the one of the biggest issues las vegas elections odds fans are watching is the issue of the American economy, and how to properly stimulate it and raise the value of the US Dollar. Las vegas elections odds reflect each of the candidates’ popularity among the American people as well as people abroad.