Florida
On October 27, 1810, U.S. President James Madison proclaimed that the United States should take possession of West Florida between the Mississippi and Perdido Rivers, based on a tenuous claim that it was part of the Louisiana Purchase
The third part of James k. Polk's war plan was to "1.) to capture Mexico city". This fell outside Polk's usually craving for manifest destiny, which up until then have only been an east-to-west route.
That was before the revolutionary war, but what are you asking???
Answer:
Calvin Coolidge is the 30th president of the United States.