Over the past two years, sizable majorities of voters in both major parties have remained with their parties Among registered voters who in September 2018 identified for leaned toward the Republican Party, % who at each point were Among registered voters who in September point 2018 identified for leaned toward
Since 2018, comparably small shares of registered voters in both parties have changed parties. About one-in-ten voters (9%) who affiliated with the Republican Party or leaned Republican in September 2018 now identify as Democrats or lean Democratic. An identical share of voters (9%) who two years ago identified as Democrats or leaned Democratic now align with the GOP.
Over the past two years, sizable majorities of voters in  | both major parties have remained with their parties  | Among registered voters who in September 2018 identified for leaned toward  | the Republican Party, % who at each point were  | Rep/Lean Rep  | Dem/Lean Dem  | No Lean  | 81 Rep/Lean Rep  | at all five points  | 91  | 88  | 90  | I Returned  | 9 Are now Dem/Lean Dem  | -3 Are now no lean  | Sept  | Sept  | April  | Jan  | July  | '18  | 119  | 20  | 20  | '19  | Among registered voters who in September point 2018 identified for leaned toward  | the Democratic Party, share who at each point were  | Dem/Lean Dem  | Rep/Lean Rep  | No Lean  | 81 Dem/Lean Dem  | at all five points  | 92  | 92  | 89  | 93  | I Returned  | Are now Rep/Lean Rep  | 3 Are now no lean  | Sept  | Sept  | Jan  | July  | April  | 19  | 20  | 20  | 18  | I'9  | Note: Based on registered voters  | Source: Surveys of U.S adults conducted between September 2018 fand July 2020  | PEW RESEARCH CENTER 