In a democracy, the primary talent of the ruler is winning elections. This explains why, although winning politicians are more clever than the average citizen, they are not significantly better at governing. This also explains why juries are wiser than one would expect.
We should try drafting our political candidates by lottery, then elect from this pool after a traditional campaign. We can start with a State House and see what happens.
Update: Ok, could we at least insist on licensing exams for Senators and Representatives? We license barbers for Pete's sake ...