How state-level registration has changed in recent years.
KEY POINTS FROM THIS ARTICLE
— Party registration can be a lagging indicator of political change, but recent changes in some states are bringing registration more in line with actual voting.
— Republicans have taken the voter registration edge in states such as Florida and West Virginia somewhat recently, and Kentucky flipped to them just last week. Democrats have built bigger leads in several blue states.
— Democrats hold a substantial national lead in party registration, but a lot of that has to do with the fact that a number of states, many of which are Republican-leaning, do not register voters by party. A little less than two-thirds of the states register voters by party (31 states plus the District of Columbia).
— Overall, Republicans have made gains over Democrats in 19 states since summer 2018, when we last looked at these trends, while Democrats have made gains over Republicans in 12 states and the District of Columbia. There are more registered Democrats than Republicans in 17 of these states plus DC, and more registered Republicans than Democrats in 14.