Legislative branch I believe it is
Answer:
"Yesterday December 7 1941 a date wich will live in infamy the United States of America was suddenly and delibertly attacked by naval and air fores of the Empire of Japan"
Explanation:
He states that Japan attacked on purpose and that this attack is a serious one that the United States will remember forever. By calling out Japan this way he is showing support for the US to go to war with Japan.
My guess would be the first one