Erick pointed out Rosen admitted in the article he got some of the material from Democrat opposition researchers. Check out this little admission in Rosen's piece:
"... Democratic aides e-mailed links to controversial statements the blogger has made on redstate.com and in other conservative forums."(A lot of readers have suspected McClatchy gets its talking points from DNC operatives -- nice of Rosen to confirm it.)
One more thing -- the Rosen piece managed to misspell Erickson's name.