| British Premiers | US Presidents | |
| Entered Parliament / Congress | Early, in 20s & 30s. | In middle age.
Recently, Govs w/out Cong experience. |
| Experience in party posts | Experienced in several positions [below PM: PPS, junior ministers.] | Commonly not.
RWR & JEC had none. [But govs are executives.] |
| Chosen by: | Peers: MPs in party
[until Labour in 1990s, electoral college.] |
Primary voters, not even all from party. |
| Length of campaign: | Short: 3 to 4 weeks; [manifestoes and candidates known long before.] | Extremely long and exhausting. |
| Rise inside or outside party: | Intra-party selection | Both internal and external. |
| After Anthony King [with additions]. Note: Euro-style nomination produced FDR and DDE -- but also WGH. | ||