But before I get into the details, it is important to get a sense of why Obama might be "moving to the Right." There are at least three possibilities. The first is for political expediency. The second is to reassure voters that he is a responsible leader, not a crazy radical. The third is that he thinks that nuanced positions don't have the effect of the moving to the right.
Let's start with the first possibility -- expediency, the one assumed by most observers.
The Political Expediency Argument
The usual political wisdom is (1) voters vote on the basis of positions on issues, (2) there is a left-to-right spectrum of voters defined by positions on issues, (3) most voters are in the "center." Polls are constructed to appear consistent with this tri-partite hypothesis. The Dick Morris strategy, based on this hypothesis, says: if a Democrat moves the Right, he will get more votes because he will "take away" the other side's issues. If Obama and his advisors believe this, then the more they more to the Right, the bigger their win should be. But all three hypotheses are false, and so is the conclusion based on it.
http://www.huffingtonpost.com/george-lakoff/the-mind-and-the-obama-ma_b_111105.html
Barack Obama should not move, or even appear to be moving, toward right-wing views on issues -- even with nuanced escape clauses. Arianna Huffington, Paul Krugman, and the NY Times Editorial Page all agree, for various reasons. I agree as well, for many of the same reasons, as well as important reasons that go beyond even excellent political commentary. My reasons have to do with results in the cognitive and brain sciences, as discussed in my recent book, The Political Mind: Why You Can't Understand 21st Century Politics with an 18th Century Brain.