They only look at the Republican members. Thomas Massie votes with the party 91% of the time. When he doesn't it is because "they’re protecting pedophiles, prioritizing corporations over farmers, spending us into oblivion, or starting another war".

They look at key bills in regard how Republican members of Congress voted that advanced or undermined the principle of: individual liberty, limited government, free markets, fiscal responsibility, and an America First, non-interventionist foreign policy. The average score is only 47.