The reason why people take an oath to support the Constitution instead of the country or the President is because the Constitution is the supreme law of the land, have has power even over the present himself. It is not required that every American take this oath--it is a personal choice. <span />
The Mexican war was justified under the principle of Manifest Destiny <span />
No they shouldn’t because it can interfere with the geography of the country if an illegal substance or organism is brought into the country
