Question

what caused Louisiana to call
for a secession convention and break away from the union.

Answer 1

“Louisiana seceded from the Union on January 26, 1861, although many in the state opposed the decision. ... Louisiana kept this independent status until March 21, 1861, when it transferred its allegiance to the Confederate States of America.”

Answer 2

Answer:

President Alexandre Mouton proclaimed the connection between Louisiana and the United States to be dissolved, and in a symbolic demonstration of this change in status, the delegates lowered the American flag in the chamber and replaced it with a Louisiana kept this independent status until March 21, 1861, when it transferred its allegiance to the Confederate States of America.