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I was curious what the current breakdown is among U.S. voters, identifying as Republican, Democrat, and Independent.
Here is a recent Gallup poll (Jan 2024), that gives the polled ratios of those groups.
INDEPENDENT : 43%
REPUBLICAN : 27%
DEMOCRAT : 27%
And it also goes into the history in Gallup polls over the last 34 years, back to 1991, of those ratios and how they've changed, and interpretation of what they mean.
Independent Party ID Tied for High; Democratic ID at New Low (Gallup poll, Jan 12 2024)
https://news.gallup.com/poll/548459/independent-party-tied-high-democratic-new-low.aspx