Respuesta :
The Coining of 'Manifest Destiny' By the time Texas was admitted to the Union as a state in December 1845, the idea that the United States must inevitably expand westward all the way to the Pacific Ocean had taken firm hold among people from different regions, classes and political persuasions.
Answer:
Slaves/Slavery
Explanation:
US President James K. Polk (1845-1849) is the leader most associated with Manifest Destiny. Manifest Destiny inflamed sectional tensions over slavery, which ultimately led to the Civil War. The Coining of 'Manifest Destiny' By the time Texas was admitted to the Union as a state in December 1845, the idea that the United States must inevitably expand westward all the way to the Pacific Ocean had taken firm hold among people from different regions, classes and political persuasions.