http://www.usconstitution.net/constfaq_a7.html http://www.usconstitution.net/constfaq_a7.html From the US Constitution Online http://www.usconstitution.net/constfaq_a7.html http://www.usconstitution.net/constfaq_a7.html rules of the Senate http://www.usconstitution.net/constfaq_a7.html SIX specific places http://www.usconstitution.net/constfaq_a7.html#Q125 http://www.usconstitution.net/constfaq_a7.html