This is solid investigative journalism from ProPublica. The core claims — that Leo never argued a case in court, never held elected office, and played a central role in building Trump's Supreme Court picks — are all verified. The article provides specific examples (the 2022 Maine party, named judges, Federalist Society details) with good sourcing. The framing emphasizes Leo's outsized influence without elected accountability, which is fair given the facts, though 'rebuilt the American legal system' is interpretive language reflecting the author's view of his impact. The reporting is well-grounded in documented facts.