Adocument that lays out a political party's core beliefs and policy proposals for each presidential election is called a:

A document that lays out a political party's core beliefs and policy proposals for each presidential election is called a "party platform".

The definition of a party platform is an arrangement of convictions that are acknowledged as normal for a specific political gathering and exhibited to people in general to help the general population know the standards and qualities for which that gathering stands. Party platforms help make parties, not the a different way. A political gathering master clarifies what stages are, the reason they matter and for whom.