Further along these lines, modern communication has caused the US political system to more closely approach direct democracy, causing problems along the lines of those foreseen.
I think polling is what has done it, because it shortcuts the feedback cycle between representative and represented.
Edmund Burke made the point eloquently in his speech to the voters of Bristol:
"Certainly, gentlemen, it ought to be the happiness and glory of a representative to live in the strictest union, the closest correspondence, and the most unreserved communication with his constituents. Their wishes ought to have great weight with him; their opinion, high respect; their business, unremitted attention. It is his duty to sacrifice his repose, his pleasures, his satisfactions, to theirs; and above all, ever, and in all cases, to prefer their interest to his own.
But his unbiassed opinion, his mature judgment, his enlightened conscience, he ought not to sacrifice to you, to any man, or to any set of men living. These he does not derive from your pleasure; no, nor from the law and the constitution. They are a trust from Providence, for the abuse of which he is deeply answerable. Your representative owes you, not his industry only, but his judgment; and he betrays, instead of serving you, if he sacrifices it to your opinion."
Burke is already presaging the exact topic we're discussing: whether democracy is about the direct will of the people, or whether an elected representative has duties other than merely voting as his electors wish him to.
Remember, though, at that time the world was ruled by monarchies and it was thought that people were too stupid and illiterate to be part of their own governing.
It's 2011, and no one can debate this: It's up to the people to decide themselves whether they want to someone to override their will or to respect it. No one has the power to say, "Should we trust the will of the people?" The Enlightenment happened. You and I can debate, but we, the people, will decide.
> Remember, though, at that time the world was ruled by monarchies and it was thought that people were too stupid and illiterate to be part of their own governing.
Note the date. The Glorious Revolution -- establishing the ascendancy of Parliament over the Crown -- is more than a hundred years in the past when he made this speech. The American Revolution is but 2 years away. Before long Burke will be reflecting on the horrors of the French Revolution.