Newly compiled voter-registration data show the Democratic Party has shed about 2.1 million voters since the 2020 election, while the Republican Party has added roughly 2.4 million. The figures, reported by CNN and drawn from a New York Times analysis of L2 voter files, have cut Democrats’ once-comfortable affiliation edge to around six percentage points, a net swing of some 4.5 million voters in four years. Florida is driving much of the decline. Governor Ron DeSantis said registrations there show Democrats down more than 850,000 from 2020 to 2024, representing close to 40 percent of the party’s nationwide losses. Similar patterns appear in several battlegrounds: compared with the start of Donald Trump’s first term, Republican registration shares are up eight points in both Pennsylvania and North Carolina, six in Nevada and three in Arizona—marking the GOP’s strongest position in those states in more than two decades. Analysts attribute the erosion of Democratic rolls largely to slipping support among men, younger voters and Hispanics, groups that had powered the party’s gains earlier in the decade. The registration gap adds to Democrats’ challenges ahead of the 2026 midterms and the 2028 presidential race, where control of the Electoral College and at least 14 U.S. House seats could shift under post-2030-census reapportionment. The data arrive as the Democratic National Committee gathers this week to debate the order of its 2028 primary contests. Party officials say decisions on which states vote first—Nevada, New Hampshire and Michigan are among the contenders—will influence how and where resources are deployed to win back voters the party has been losing on the registration rolls.