It was a late August night in Philadelphia. The air was humid and the mosquitoes brought with them a nasty combination of aggravation and potential illness. The retired general walks up to the door of a brick boarding house and knocked, awaiting a most important answer. The door opens and a man in his early forties appears. His eyes widened for a moment, and out of habit said, “What can I do for you General Washington.” He gestured his guest into his temporary home, and brought him into a parlor where he offered his former commander some wine.
“Maybe a bit later, Charles, but for now, I really need to speak with you about the convention,” Washington said.
“I’ll gladly speak to it, General, but I doubt anything has changed since we last spoke.”
“I’ve met with your colleagues Mr. Butler and Rutledge, along with your cousin. Only Mr. Rutledge is planning on staying till the final vote.”
“John is a dear friend of mine, but the rest of us will be leaving in the morning.”
“Please Charles, I implore you to stay. We need your support to keep this union together.”
“We had a plan. All we asked for was three-fifths of our slaves be counted for representation, and that we keep the slave trade open. But those bastards Morris and Gorham began their plot back in July, and managed to convince most of the Virginia delegation to only count whites, and to ban the slave trade.”
“Charles” Washington said with a sternness in his voice, “that only happened when you decided to push the Committee into counting the entirety of the slave population, after the convention had already agreed to the three-fifths you and Mr. Wilson motioned. Now Mr. Wilson is against both proposals, and you’ve only yourself to blame.”
“I am doing what I have to.”
“Are you going to let your own personal interests derail a process that will benefit the whole of the country?”
“I’m not just doing it for my own interests, but for the interests of South Carolina. I could never return to Charleston endorsing what the convention is now proposing.”
“This is about more than just South Carolina. This decision could impact the whole continent. The Hemisphere.” Washington looked away for a moment, and turned back, “both you and your cousin have contributed so much to this convention, to your state, and to the country. Let us go forward together.”
Pinckney stepped toward Washington, and with a regretful look in his eyes said, “I’m sorry. But I was a South Carolinian long before I was an American, and that’s where my highest allegiances lie.”
“I’m sorry to hear that,” said Washington as he turned away and began walking toward the door.
“The delegations from North Carolina and Georgia are also planning to depart soon. None of them will have enough members to cast a final vote,” shouted Charles as Washington left through the door.
Washington left Pinckney’s boarding house and headed for the apartments of the other deep south delegations, but he got similar replies. When the convention resumed, the South Carolina delegation was all gone except for John Rutledge. By the end of the week the North Carolina and Georgia delegates were gone as well. On Friday, September 14th, 1787, the convention voted in support of their new constitution, with the delegations for Georgia, the Carolina’s, and Rhode Island missing.
The PoD for this timeline is during the constitutional convention. On July 11th, 1787 IOTL Pierce Butler and Charles Cotesworth Pinckney motioned to have the full population of slaves counted for the purpose of apportioning representation. IOTL Nathaniel Gorham, Gouverneur Morris, and William Paterson called them out on their BS, pointing out that the South Carolina delegates wanted only 3/5ths of slaves counted for apportioning direct taxes, but counted equally when it came to representation, essentially calling them equals when it benefits them, but claiming them to be inferior when it didn’t. IOTL this instance just lead to the South Carolina delegates halting their attempts amending the 3/5ths compromise. ITTL there is a more negative reaction to this, and the abolitionists at the convention managed to get more of the delegates on their side in removing or not including all of the slavery provisions in the final draft.
The final draft of the US constitution ITTL only counts free inhabitants for purpose of representation, the slave trade is abolished immediately upon adoption, and there is no fugitive slave clause. Slavery is not outright abolished, but all the provisions added to it IOTL to make the deep south go along with it are no longer there.
The Charles that George Washington is talking to is Charles Cotesworth Pinckney.