Yes they do.  

I find it interesting that the constitutional framers did not embrace democracy and certainly not universal suffrage.  Many of the founders generally believed the mass of citizens are corruptible, easily swayed, and their poor judgement would lead to chaos, the embrace of a charismatic despot or an abdication of our freedoms.

Although I fully support many of the suffrage amendments (sex, race, etc.), I'm not so sure there shouldn't be a meritocratic litmus test of some kind.  I have little clue what that test should be (financial, educational, public / military service?), but looking at the state of our republic today, I'm not convinced the framers were wrong.