Michael Barone looks at the numbers behind the health care reform debate.
There are more conservatives than Republicans and more Democrats than liberals. That's one of the asymmetries between the parties that helps to explain the particular political spot we're in.
The interesting stat - 16 of the 21 top Democrats in the House come from districts Obama won. The average margin was 71 to 27 in those districts.
Thanks to them, he's not that popular anymore.