This year, voting is more than just the core responsibility of citizenship; it is an act of defiance against malicious political forces determined to reduce access to democracy. Millions of ballots on Tuesday — along with those already turned in — will be cast despite the best efforts of Republican officials around the country to prevent them from playing a role in the 2012 election.

Even now, many Republicans are assembling teams to intimidate voters at polling places, to demand photo ID where none is required, and to cast doubt on voting machines or counting systems whose results do not go their way. The good news is that the assault on voting will not affect the election nearly as much as some had hoped. Courts have either rejected or postponed many of the worst laws. Predictions that up to five million people might be disenfranchised turned out to be unfounded.

But a great deal of damage has already been done, and the clearest example is that on Sunday in Florida, people will not be allowed to vote early. Four years ago, on the Sunday before Election Day, tens of thousands of Floridians cast their ballots, many of them black churchgoers who traveled directly from services to their polling places. Because most of them voted for Barack Obama, helping him win the state, Republicans eliminated early voting on that day. No legitimate reason was given; the action was entirely partisan in nature.

The author of that law, as The Palm Beach Post revealed last week, was Emmett Mitchell IV, the general counsel for the state Republican Party. Under his guidance, party officials in Florida got thousands of perfectly eligible black voters purged from the rolls in 2000, and got a law passed last year that limited registration drives and early voting days. A federal judge struck down the registration limits, but not before they drove down the numbers of new registrants.