Florida's anti-gay activists have hit a brick wall with their gay marriage crusade:

A controversial amendment that would make permanent the state's ban on gay marriage may not make this year's ballot after election officials discovered a mistake made in Miami-Dade County.

Those seeking to put the amendment on the 2008 ballot must gather more than 611,000 signatures from across the state by Feb. 1. Those who backed the amendment that would ban gay marriage thought they had reached that threshold late last year.

Cue Nelson…