>First of all, there is a typo
>
>@_IsIndependen = @IsIndependent
>
>(t is missing).
>
>Secondly, you don't need this parameter at all. Since you're using a constant in this case, you don't need to pass this extra parameter to your dynamic query. You only pass what you need to pass, you don't pass parameters such as IsMale, etc. and IsIndependent.

I don't understand,. How would you pull only Independent and Republican but not Democrat? You have to be able to pass all or some of the 3 choices.