Editorial: Casper Star-Tribune, May 8

What does it mean to be a Republican?

Traditionally, a number of political motivations and ideologies could fit under the definition of Republicanism. Broadly speaking, all share a belief that small government is better.

Some stress social conservatism, while others opt for a moderate or even libertarian stance on social issues. Some are interventionist on the global stage. Other believe the U.S. is best served by a greater inward focus.

In 1967, when he was still governor of California, Ronald Reagan famously said there was room in the big Republican tent for many views. But increasingly...