Trump’s Supreme Court nominee, Gorsuch, is described an ‘originalist’. That means believes that his job as judge is to interpret the law as it was intended when written. As opposed to people who believe judges should have the power to interpret the law based on the day and age. Some people refer to the latter as an ‘activist’ judge.
To me, believing in the latter type of judge is like thinking sports referees should make rules up on the fly, rather than calling the game against the existing set of rules.