PoliticsWelcome to the front lines of the housing crisis. Florida and three of the next states to vote in the GOP presidential contest are among the 10 worst foreclosure states in the nation. And there’s not much light at the end of the tunnel: The four states have the highest percentage of homeowners who owe more on their mortgages than their homes are worth. Nevada, which votes Feb. 4, had the worst foreclosure rate in the country in 2011, for …