There was a lot of opposition to black people leaving the south because the white planter class did not want to lose their cheap labor if the blacks migrated westwards. They even went to the extent of closing the Mississippi River and intimidating to sink boats carrying the African Americans
True
I already had that question on my lesson
A voilent protest, threats towards a school or a threat to a federal ran business such as a post office some banks police station etc.
Answer:
Herbert Hoover and Al Smith