1: A phrase used to refer to how a specific political ideology or the beliefs of a particular political party has changed over time
An example of political evolution would be the Republican’s views on environmental issues. In the past, Republicans used to take a more aggressive approach by actively making policies and laws that would protect the environment from harm as you can observe based on the work done by U.S. President Richard Nixon. As time passed, as demonstrated by the work of U.S. President Donald Trump and Ronald Reagan, Republicans shifted to strongly favoring deregulation and eliminating or weakening environmental protections.
by Vanguard 1998 June 12, 2021