Even 57% of New Dems polled rate Harper's perfromance average or better? What is up with that?

Even 57% of New Dems polled rate Harper's perfromance average or better? What is up with that?
Links:
[1] http://rabble.ca/
[2] http://rabble.ca/contact/editor/[letter to editor for rabble.ca-node-88772]
[3] http://rabble.ca/supportrabble
[4] http://rabble.ca/contact/corrections/[correction for article rabble.ca-node-88772]
[5] http://rabble.ca/category/tags-issues/harper
[6] http://rabble.ca/category/tags-issues/liberal
[7] http://rabble.ca/category/tags-issues/conservative
[8] http://rabble.ca/category/tags-issues/polls
[9] http://rabble.ca/category/tags-issues/nanos
[10] http://rabble.ca/category/tags-issues/dp
[11] http://rabble.ca/category/tags-issues/opinio
[12] http://rabble.ca/category/tags-issues/year-end-poll