Explain at least one potential negative consequence of nationalism?

1) forced assimilation of minority cultures into a nation's majority culture.

(Here's a couple extra)

2) ethnic cleansing, such as Bosnia and Herzegovina in the 1990s.

3) rise of extreme nationalistic movements, such as Nazism.

4) competition between nations leading to warfare.

during the ming dynasty

answer; andrew jackson approved nullification by signing it into law,and john calhoun opposed it saying it was unconstitutional;