Romney Dropping in Popularity Among Republicans

Over past 7 months, Mitt Romney’s favor among Republicans has fallen off a cliff. 

Monthly surveys by Public Policy Polling shows that Romney’s level of support has fallen to just 48% among Republican voters from a high of 67% in May of this year. 

Romney polled in the 60s on the first three polls but has not reached that threshold since and now for the first time he's below 50% with the party base. I don't have any theories to explain Romney's popularity slide with Republican voters but it certainly bodes ominous for his 2012 nomination prospects if he can't get it turned around.

The same polling shows Mike Huckabee’s support staying above 60%, and Sara Palin’s favorable rating not falling below 69%.