Why are the washington nationals called the nationals?

The Washington Nationals are named for the term "Nationals," which reflects the team's connection to the capital of the United States, Washington, D.C. The name emphasizes the team's representation of the nation and its identity as the only Major League Baseball team in the capital. The franchise has undergone various name changes throughout its history, but "Nationals" was chosen to evoke a sense of pride and patriotism associated with being based in the nation's capital.