Ryan Gosling stars as Steven Myers, a top aide to Governor Mike Morris (George Clooney), who is running for president; currently at stake is the battleground state of Ohio. If Morris can gain Ohio's delegates, he's pretty much assured to get the Democratic nomination, and in the film it's noted that the Republicans have a weak field themselves (at best). All of this means, of course, that as Ohio goes, so goes the presidency, so there's plenty riding on this one primary.
Morris' campaign manager is Paul Zara, played by Philip Seymour Hoffman, a veteran of many cutthroat campaigns. And although Zara has the experience, Morris often turns to his young(ish) aide Steven to gain a less-jaded, more-truthful perspective. (Of course, by doing so, Morris is simply trying to hear from someone who may not be thinking four years or fewer down the road at his next job.) Like most staffers, Steven believes in Morris; he thinks that if the man is elected president, good things will happen. He is the prototypical idealistic aide; doing the right thing will win out over all, he believes. He's not completely naive to backdoor politics, but his organization, his analysis, his acumen, and his spirit are what endear Morris to him.
Even though Steven is not a Mr. Perfect, a self-righteous do-gooder, he's savvy; he knows which buttons to push. He learns, though, that his chief obstacle to success is in recognizing whom is trustworthy, and just because one is friends with another doesn't mean that either owes the other much when it comes to the game of politics. For example, simply feeding the press (in the person of Marisa Tomei) the occasional tidbit doesn't mean that the media will be an extended PR arm for Morris.
Somewhere along the line, Steven reaches a breaking point, a place at which loyalty isn't the most important thing on his plate. This point comes as a result of two pretty bad decisions, one that he knows is a bad idea right away and another that seems a little more innocent – but then Steven has underestimated how petty, parochial, and vindictive those in the business can be. It's all about one's level of paranoia. You have to have some in order to foresee problems, but too much of it will hollow out your soul in a jiffy.
Clooney, who also directed, looks and sounds presidential, but he's not the focus of the movie; as with his brilliant Good Night, and Good Luck, he's a powerful supporting character. Things don't revolve around Mike Morris as they do around Steven Myers, and that's one reason the movie works – our focus is on the morality battle, and it's presumed that as a sitting governor, that battle's long been over for Morris.
The hand-picked cast is superb. Not only do we get Clooney, Hoffman, Tomei, and Gosling, we also get Paul Giamatti as the governor's opponent's campaign manager. Each one seems to steal scenes, even ones they share. Even Evan Rachel Wood, as a new intern in Morris' camp, turns in a splendid performance.
It's clear that The Ides of March won't be for everyone. It is, as I said, cynical – highly so. It won't leave you hopeful about, well, anything. It gives you no one for whom to really cheer and yet no one for whom to really despise. It offers realism in lieu of hope, and its goal of trying to explain the motivations of those who get involved in these campaigns is reached. It's an effective, gripping melodrama.