A recent game of President Infinity I played resulted in Charles Sumner winning the Republican nomination and subsequently winning the election with 188 electoral votes
All other candidates are kept the same as far as I know, my knowledge of the era is really bad.
Let's assume Sumner picks Lincoln as his veep for simplicity sake, if this is implausible then feel free to suggest a replacement veep
My question is, what does this do? Does the civil war go as normal? Or do Kentucky, Maryland, and Delaware join the CSA as well. I know Sumner was more anti-south than Lincoln, but what does this do?