This is partly a function of approval ratings. People pay attention [to polls] and start saying, 'Lets take a more independent tack.' It is frankly self-interest, self-preservation.
![This is partly a function of approval ratings. People pay attention [to polls] and start saying, 'Lets take a more independent tack.' It is frankly self-interest, self-preservation.](http://cdn.quoteddaily.com/images/john-thune/this-is-partly-a-function-of-approval-ratings-people-pay-attention-to-polls-and-start-saying-lets-take-a-more.jpg)
This is partly a function of approval ratings. People pay attention [to polls] and start saying, 'Lets take a more independent tack.' It is frankly self-interest, self-preservation.