While that's not a majority, it is a plurality. There are more self-identified conservatives than moderates, who make up just 35% of the population and far more conservatives than liberals. Just 21% of Americans call themselves liberals.
It is too bad that mainstream media paints conservatism as extremism and as the minority viewpoint. It simply isn't. Just because liberals run the press, the most popular opinions in the country are silenced and tiny minority opinions are represented as the norm. (See for example, the abortion debate.)
Trust your instincts conservatives. Hold firm to your positions and ideas. There is popular support out here. I hope (and am beginning to suspect) that we might see some significant signs of that support in November of 2010.