I'm not sure there is enough data to be concerned at this point. My list showed Evangeline as leaning slightly Democrat. Remember that although Bush may have won the Parish by a few percent, I think he won the state by more than that (11%?). So if Terrell lags Bush's performance by 7-8% she wins the state by three. I'll be happy with winning by three votes, let alone percent.
Also... it could easily be Bush's performance two years ago that is out of kilter, not Terrell's. What were the numbers for the "primary" this year?
Lastly, we're talking about a couple hundred votes in one precinct. Let's wait a bit.
Hang in there