Like anyone else including you, Pence can build a campaign for 2024 any time he wants. That’s the beauty of a democratic republic.
It’s up to Republican primary voters to decide.
The problem with the First in the Nation NH primary is same day registration.
This is why McCain won the primary.
Trump won the NH primary, but Kasich was second.
A lot of those Kasich voters were not Republicans.
The Independents in NH make up the largest voting block. They outnumber both Dems and Reps.