Answer:
The lyrics come from the Defence of Fort M'Henry, a poem written on September 14, 1814, by the then 35-year-old lawyer and amateur poet Francis Scott Key after witnessing the bombardment of Fort McHenry by British ships of the Royal Navy in Baltimore Harbor during the Battle of Baltimore in the War of 1812.
Explanation:
It not in effect because it made the slaves seem less than people and also because if south wants a vote to pass they could force the slaves to agree with them.