What was the result of the Adams-Onis Treaty?

The Adams–Onís Treaty (Spanish: Tratado de Adams-Onís) of 1819, also known as the Transcontinental Treaty, the Florida Purchase Treaty, or the Florida Treaty, was a treaty between the United States and Spain in 1819 that ceded Florida to the U.S. and defined the boundary between the U.S. and New Spain.

Explanation:

confederacy: supported slavery, believed states should be able to nullify federal laws, supported low tariffs

union: everything else

no it wouldn't because yellow journalism would exaggerate in everything.