Had to revise this a bit: it was too much show-your-work.
There are surprisingly few timelines where the United States does not have a Civil War at some point. On Quantum 7’s Breckinridge, they’ve avoided it so far — but as the 1864 election looms, it would appear that something is going to happen, and soon. The compromises that kept the Democrats unified enough in 1860 to win the election all died with Vice President Stephen Douglas: today, President John Breckinridge is loathed by half his party, but his refusal to stand aside in the upcoming election worries a lot of people. Including those on Homeline: they know how the story can end.