House Requirements: No Person shall be a Representative who shall not have attained to the Age of twenty five Years, and been seven Years a Citizen of the United States, and who shall not, when elected, be an Inhabitant of that State in which he shall be chosen.

Senate Requirements: No Person shall be a Senator who shall not have attained to the Age of thirty Years, and been nine Years a Citizen of the United States, and who shall not, when elected, be an Inhabitant of that State for which he shall be chosen.

That's it. Liars OK, idiots OK, No education OK. Name ANY job that involves public safety or the control of Billions of dollars with basically zero proof of competency. What is there to check other than what is actually in the constitution?