A projection of how the election results would look if we used Additional Member System (AMS), like in Scotland and Wales.
| Party | AMS | FPTP | Seat change |
|---|---|---|---|
| Labour | 236 | 411 | +175 |
| LibDems | 77 | 71 | -6 |
| Green | 42 | 4 | -38 |
| SNP | 18 | 9 | -9 |
| Plaid Cymru | 4 | 4 | 0 |
| Reform | 94 | 5 | -89 |
| Conservative | 157 | 121 | -36 |
| Northern Ireland | 18 | 18 | 0 |
| Other | 4 | 6 | +2 |
I have often wondered why MMP is always done using FPTP for the local component. Why not IRV + proportional top-ups?
I don’t really understand AMS as well as MMP, but I think the same question could be applied.