The executive branch is the most important because it is the one that carries out laws therefore without it there would be no laws therefore allowing total chaos. That is why it is the most important branch.
Hope this helps
A.
Undermine
erode the base or foundation of (a rock formation).
Many people who immigrated to the United States during the Gilded Age moved to the coasts of the United States. It really depended on where you were from, so if you were of European origin, you most likely migrated to the eastern coast, but if you were of Chinese origin, you most likely migrated to the western coasts. It was just based on what was the closest shore by boat.