Because it's always only been about these 2 parties. Republican and democrat. The third parties are just there... they never ever get enough votes to win, electoral or popular vote.
Internal im pretty sure
explanation:
Answer:Nullification crisis, in U.S. history, confrontation between the state of South Carolina ... The doctrine of nullification had been advocated by Thomas Jefferson and James ... John C. Calhoun furthered the nullification doctrine in his South Carolina ... of the legislature) to take an oath of support for the ordinance, and threatened contrast
Explanation:
Answer:
c
Explanation:
The most significant turning point in the Cold War was the Cuban Missile Crisis, tensions between both sides decreased after both sides realized the risk of starting a nuclear war. After the Cuban Missile Crisis, both sides agreed to remove some of the nuclear missiles placed near each other's country.