Who spoke out against the acquisition of the Southwest following the Mexican-American War?

James Polk

James Slidell

Winfield Scott

Ralph Waldo Emerson

Ralph Waldo Emerson against the acquisition of the Southwest following the Mexican-American War. Option four is correct.

Ralph Waldo Emerson was an American essayist, lecturer, philosopher, and poet, head of the transcendentalist movement of the mid-19th century.

He moved away from the religious and social beliefs of his contemporaries, developing and conveying the philosophy of transcendentalism in his 1836 essay "Nature".

The correct answer is: Ralph Waldo Emerson spoke out against the acquisition of the Southwest following the Mexican-American War.

Ralph Waldo Emerson was an American essayist, lecturer, philosopher, and poet who led the transcendentalist movement of the mid-19th century. He was seen as a champion of individualism and a prescient critic of the countervailing pressures of society, and he disseminated his thoughts through dozens of published essays and more than 1,500 public lectures across the United States.