the exercise of presidential power during times of crisis in American history. Andrew Jackson and Abraham Lincoln were both presidents who used their powers to the fullest in times of national emergency. Jackson vetoed more bills than any other president before him, while Lincoln issued the Emancipation Proclamation without congressional approval to preserve the Union and end slavery. Both presidents faced criticism for exceeding their constitutional powers, but believed their actions were justified in the context of the crises they faced.
make it sound like a human wrote it (easy to read)