The Writer's Guide to Character Traits by Linda N. Edelstein is a great book written by a psychologist. It discusses influences on a person's character and lists possible explanations and motives for behavior. It could be helpful. Another consider is 45 Master Characters by Victoria Lynn Schmidt. This book analyzes classic archetypes from Greek myth that have appeared in various incarnations throughout literary history. It explains the chief motivations of each archetypes and gives examples of them in books and film. You might be able to incorporate some of the traits from these archetypes to craft a better character.

From what it sounds like, your villain is a bit flat, not rounded, and thus your story has become more plot-driven than it should be. The best stories are those where the characters drive the action of the novel. Why don't you try letting your villain do what he wants instead of forcing him to follow your preconceived notions on the plot? If he just sits on his hands or goes off and does his own thing without bothering with the hero, than he's not the real villain of your piece. You might want to consider a new character. And remember, in fantasy we tend to see villains who are purely and irredeemably evil. But sometimes the most intriguing conflicts come between two characters who aren't evil, they're just different. Good versus good can be more conflicted and grittier than good versus evil. Your villain might even believe that the hero is the evil one, and thus must be stopped.

You also might find that your story doesn't have a clear antagonist. Most do, but some are driven purely by the actions of the characters. Sometimes the characters act for good, sometimes for evil. Look at novels like George R.R. Martin's Game of Thrones. His book is filled with one of the largest casts in any fantasy. There are some unlikeable characters, particularly in the first book. But as the series progresses and more of these characters are given a chance to narrate the story and tell things from their perspective, the reader begins to realize that none of them are really good or evil. They're simply people. And that's why the story is effective. Hope that helps!

However, there is no way on earth that Harry Reid or Chuck Schumer will ever be "the same" as Jim DeMint; that Eric Cantor will be confused with Nancy Pelosi; or that Sean Hannity and Keith Olberman would have a thimbleful of the same agenda.