Prior to the
2016 election, Miller described himself as a
conservative and labeled himself a "Conservative activist". Since working with
The Bulwark and Trump's first election win, Miller has self-identified as both a
libertarian and a "
liberal millennial." Miller has compared his journey to liberalism as similar to his experience as coming out as gay. Miller has also referred to himself as "
capitalist moderate neolib" in a June 2025 interview with then-
mayoral candidate
Zohran Mamdani, where Miller admitted that if he lived in
New York City he would not rank Mamdani or then-candidate
Andrew Cuomo in the first four slots of the
ranked-choice ballot for the
2025 New York City Democratic mayoral primary. Miller has stated that "
conservatism is pretty much
MAGA. I mean, some people are objecting to that, but in colloquial usage, conservatism is MAGA" and that "
leftism, the stuff that I don't like about the left, is mostly defined now as
progressivism or leftist or you know something to that effect or
socialism. And so I think I am a liberal." Describing the
Trump presidencies as
fascist, Miller has called Trump a "bigoted, barmy, bargain-basement
Berlusconi" and wrote in
Why We Did It that "As much as you think you loathe [Trump], I loathe him infinity-to-the-nth-degree more." ==Personal life==