IDP for 2-Partition Maximal Symmetric Polytopes

We provide a framework for which one can approach showing the integer decomposition property for symmetric polytopes. We utilize this framework to prove a special case which we refer to as $2$-partition maximal polytopes in the case where it lies in a hyperplane of $\mathbb{R}^3$. Our method involves proving a special collection of polynomials have saturated Newton polytope.