Why were some people opposed to the war with mexico?

The Mexican-American War, waged between the United States and Mexico from ... largely because northern political interests were against the addition of a new slave state. ... Congress declared war, despite opposition from some northern lawmakers.

Explanation:

the difference is that white collar worker performs skills like worker as a scientist or well blue collars do physical work and they do services like being a cook.

what the first or next guy says