I am thinking separation of powers
B the 15 amendmentgave freed slaves suffrage or the right to vote
In general, yes, immigration during 1830s to 1840s was vital to the industrialization of America, since it was mostly immigrants who first sought employment in the factories that were an essential element of industrialization.
I think the answer might be the second one but t let me know if I am wrong
Richard Nixon did all of the following as president excepted "be impeached", since he didn't allow this to happen by resigning from office. He was the first and only president to do so in US history.