The CBO is widely regarded as nonpartisan, with 83% of economists in a 2017 survey affirming its credibility for both parties. It hires based on expertise, not politics, and its methods are transparent. Claims of bias, like the Health Division's alleged Democratic lean, lack broad evidence; only a few staff made small political donations. To convince Mr. Miller, one might highlight this expert consensus and CBO's detailed, open methodology. However, political divides may sustain skepticism, especially on bills like the One Big Beautiful Bill Act, where CBO's $2.3 trillion deficit estimate clashes with claims of spending cuts.