To answer this question we need to define what a conservative is. There are lots of reasonable definitions, and my answer will vary with them. I’ll take my definition from this old thread:
Ignore how people self-identify for now. I would be content with 50% conservative, 0% reactionary. But that would involve the collapse of the GOP whose base is 3/4 reactionary. Something over a quarter of Democrats are conservative: they sometimes are referred to as Democratic Mainstays. Independents span the reactionary-conservative-moderate-liberal-other spectrum.
What about my ideal? 10% conservative, 10% socialist, 80% technocratic-wonky-center-left-mutual-admiration-society.