Published: Jul 25, 2012 10:18 AM EDT

TALLAHASSEE, Fla. (AP) - If a Democratic or Republican primary winner in Florida won't face further opposition, then that primary is open to all voters under a state constitutional amendment passed in 1998.
    
The idea is that everyone should get a chance to vote for - or against - the eventual winner.
    
But It didn't take long for politicians to find a way around that requirement.
    
Two years later, the Division of Elections issued an opinion saying "opposition" includes write-ins. That's led to an explosion of write-ins. Many are friends of regular candidates without outside opposition who think they have a better chance of winning a closed primary.
    
That tactic, though, is being challenged by two Miami-Dade County voters. They've asked a federal judge to open the local Democratic primary for state attorney.

(Copyright 2012 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.)