Interestingly, with the notable exception of the Populists, alternate US political history thus far has essentially been a series of fusion efforts to oppose the Democratic coalition. In 1828, the Federalists fused with the Adamsian Republicans to form the Nat. Reps/ Whigs, who in turn fused with the Libertyites in 1848 to form the Republicans, who continued the tradition in 1896 by joining forces with the Prohibitionists.
DR F
| |
| --|
D W
| | L
| |-- |
D R
| | PRO POP
| | | |
| | -- | |
D A POP
(Not the nicest chart, to be sure, but I really don't feel like going to great lengths for one post)
You forget 1880, some Democrats fused with the Greenbacks to make the Populists.