Jeffrey M. Jones at Gallup:
In 2019, on average, 47% of U.S. adults identified politically as Democrats or said they were independents who leaned toward the Democratic Party. Meanwhile, 42% identified as Republicans or were Republican-leaning independents.
Americans' political leanings have been quite stable since 2016, the year Donald Trump was elected president. The Democratic figure has not changed in the past four years, and the Republican figure has been 41% or 42% each year since 2012.
The latest results are based on aggregated data across all Gallup Poll surveys in 2019, which include interviews with more than 29,000 U.S. adults.
