Overall, no.
Break it down, and it gets deeper. Basically, if I remember correctly, the stats were something like 60/40 Bush/Gore for Practicing Catholics, and vice versa for Catholics who graced a church with their presence only a couple of times per year. The numbers were similar, as I recall, for practicing vs. non-practicing Protestants.
A sidebar issue would be the amazing "I'm personally opposed, but..." statement that seems to so many people to be their 'escape hatch'.