CBS thinks the country is 37% Democrat but only 28% Republican

http://newsbusters.org/node/4211

On the bottom of the PDF version of the poll (page 18) it says how many Democrats versus Republicans were contacted.

"Total Republicans" contacted: 272 unweighted and 289 weighted.

"Total Democrats" contacted: 409 unweighted and 381 weighted.

"Total Independents" contacted: 337 unweighted and 348 weighted.

Unweighted poll percentages: 27% Republican, 40% Democrat, 33% Independent

Weighted poll percentages: 28%, 37%, 34%

If you actually believe that those percentages accurately reflect the political make-up of this country (like some people do), you need to have your head examined.