The answer is July 28 1914.
During the 2008 presidential campaign, the two leading candidates for the Democratic nomination were "an African American man and a former first lady" The former being Obama and the latter being Clinton.
I believe the answer is A, citizeship
The Corrupt Bargain from the year 1824 was about how none of the candidates were able to secure a majority of the electoral vote, because of this problem they had to put this in the hands of the House of Representatives who elected John Quincy Adams instead of Andrew Jackson.
From April 12, 1861 - May 13, 1865