the house is a democracy because it is democratic vote of the people.
before the 17th the senate is a non democratic vote....because it is elected by the state legislatures.
our government was created as a mixed government, as Madison states in the federalist 40, and references Polybius in federalist 63...... the father of mixed government.
http://www.debatepolitics.com/us-con...overnment.html (Not A Represenative democracy, but Mixed government)
democracy is democratic form of government, in federalist 10 Madison states clearly our government was to be republican and not democratic.
federalist 10- The other point of difference is, the greater number of citizens and extent of territory which may be brought within the compass of republican than of democratic government; and it is this circumstance principally which renders factious combinations less to be dreaded in the former than in the latter.