The mother lode Grand Bargain of them all is revealed in Article I, Section 3 of the U.S. Constitution, which reads as follows: “Representatives and direct taxes shall be apportioned among the several states which may be included within this Union, according to their respective numbers, which shall be determined by adding to the whole number of free persons, including those bound to service for a term of years, and excluding Indians not taxed, three-fifths of all other persons (emphasis added).”  
James Madison, Alexander Hamilton, James Wilson and the rest of the white males who came up with that “Grand Bargain” were quite proud of their “compromise.” It solved a tough problem for them: How best to institutionalize slavery, while not giving too much representation to the states that had the most slaves.
It established a “Grand Bargain” pattern that continues to this day. The formula is this: Some powerful white people have differences of opinion, class interests, property relations or whatever. The basis of their compromise is that something bad will happen to Black people, or that nothing good will happen, or that something good that might have happened doesn’t.  There are, of course, many more examples. A more recent illustration of how the Grand Bargain repeats itself over and over again is the New Deal. Difficult as this is for today’s liberals to grasp, the entirety of the New Deal was a Grand Bargain between those who wanted to alleviate pressure from economically desperate industrial workers potentially attracted to socialism and Dixiecrats whose highest priority was to preserve Jim Crow segregation.