More on the Republican Party's party

The Charlottesville paper has this article ("Va. GOP gathers for convention," 6/5/04) about the Republican convention, including some discussion that only Republicans should be allowed to cast ballots in Republican primaries. The article goes on to talk about how a potential Republican candidate in 2009 impressed one commentator by the way he attracted a lot of Democratic voters. So, do Republicans want the votes of Democrats, or not?