Hitler killed more people. He killed 6 million people.
One significant check the executive branch has on the legislative branch is the presidential veto. The president can also pardon people impeached by congress.
The map is showing the confederate & union states so it’s a
Capitalist class , working class, and middle class
It shows that they were willing to sacrifice there own people in an effort to overtake the US
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Hope this helps
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Zane