Or, "I'm a lifelong Republican. But ..."
C-SPAN's phone lines are full of such seminar callers.
One of my favorites was on a local radio show. The subject was guns and concealed carry:
"I'm a hunter and an NRA member, but statistics show that you're 43 times more likely to be killed with your own gun than use it in self defense".
As we all know, NRA members really enjoy spouting false anti-gun statistics as facts...