I've done a detailed analysis by precinct comparing Dem percent vote in 2000 and 2004 and turnouts in the precincts with reported machine vote switching, systematic dirty tricks, or long lines/machine problems.
Palm Beach County ranked number 3 in Florida in terms of reported irregularities in the 2004 election reported to the EIRS hotline.
Palm Beach County is documented to have had a large amount of vote machine fraud, systematic dirty tricks in minority precincts, and manipulation of absentees and provisionals, as well as long lines and machine problems primarily in minority precincts.
http://www.flcv.com/fraudpat.htmlAll precincts in Palm Beach County used touchscreen voting. The average swing in turnout from 2000 to 2004(reduction) for Palm Beach County precincts was 3.2%. For the precincts with long lines or machine problems reported, the average swing(reduction) in turnout for those precincts was 7.8% between 2000 and 2004.
http://www.flcv.com/pbvsum.htmlhttp://www.flcv.com/pbvdata.htmlFor all precincts the average swing(reduction in Dem vote percent) between 2000 and 2004 was 3.4%, but in precincts with reported vote switching the swing was 6.6%. But as explained, it wasn't possible to identify all precincts with vote switching in this limited effort and some precincts had more problematic machines than others.
But doing a precinct comparison between 2000 and 2004 and factoring in the knowledge of which precincts had the above type irregularities reported was difficult since there was a redistricting and change in precinct numbers between the 2 elections and about half of the precincts underwent significant changes that made 1 to 1 comparison between 2000 and 2004 impossible for those precincts.
Likewise only a small portion of the voters had the knowledge of the EIRS system and sufficient courage/motivation to file a report of irregularities so most such were not reported. Of those that were reported, only about half had sufficient detail in the summary put in the data base to identify the precinct where the irregularity occurred. Thus many of the problems reported were in precincts that could not be identified, and most problems were not reported.
But Florida had the most irregularities reported of all the states and the most identified vote machine fraud cases. Cases were reported in dozens of precincts in 3 counties and a lesser number of precincts in several other counties.
Broward and Palm Beach are the most Democratic counties, but due to circumstances Broward had a Repub supervisor appointed by Gov. and P.B. had a supervisor involved in major problems in 2000 and who appears to have a grudge against Dems.