Who picked a fight with the U.S. during the War of 1812, and why?

Who picked a fight with the U.S. during the War of 1812, and why? Who was the first president to declare war in U.S. history? Did he want to do this? What American political party did not want this war? What political party was for the war? How prepared for the war was the U.S.? And, how was the U.S. viewed at this time? What major events occurred in Canada? What were the Bladensburg Races? What does a black soldier famously say of the battle? Who was Dolly Madison? What did she do? What happened in New Orleans? What made this such an important thing in U.S. history? Who was Francis Scott Key? What is his significance? What did he watch? What happened to Washington D.C.? What role did the city of Baltimore play?