What are the motifs in Deep Six by Clive Cussler?

Politics in America often relies on power plays, lies, and secret maneuvering. In this novel, the President of the United States wants to implement a plan to offer aid to Russia in order to help feed her millions of starving citizens. Unfortunately, many in Congress do not believe this is a good idea and are fighting his plan. The President decides to invite his two most ardent opponents, Senator Larimer and Congressman Moran, on board his yacht to discuss the plan.