Although President Polk and many Democrats supported the war, many other Americans did not. Look at the map and the lands the United States stood to gain. Why do you think many Northerners were against the war?​

the event is known to be the soviet union.

freedom of speech is also protected by the 1 amendment.

explanation:

here is pretty much what the 1st amendment says:

congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the government for a redress of grievances.