This news release – announcing that there are now roughly 20,000 more registered Republicans in Iowa than registered Democrats – suggests that Hawkeye state Republicans can crow about a dramatic turnaround, pointing out that back in January 2009, Iowa Democrats enjoyed a 110,000 voter registration advantage.
In terms of how many voters are registered with each major party, Democrats continue to hold advantages in several key swing states, but in all of those states, their advantage is considerably smaller than it was in 2008.
In Florida, as of last month there are 4,627,929 registered Democrats and 4,173,177 registered Republicans, which amounts to a a 454,752-voter advantage for Democrats. (Keep in mind, Florida has 11.5 million registered voters, so there are a lot of unaffiliated and third-party voters.)
In 2008, there were 4,800,890 registered Democrats in Florida and only 4,106,743 registered Republicans, a 694,147-voter advantage. So while the number of voters who registered with the GOP is up from four years ago, Democrats are down roughly 170,000.