I had the opportunity, in the now distant past, to have a serious conversation with a then-freshman (since retired) Senator about a position he had taken which was not popular in his state. He gave a thoughtful, considered response, and I became a supporter. Then legislators had a lot more leeway to "vote their conscience." I agree that the system is broken, but I don't think it is the form of government that is the problem. I agree that it is party politics and the influence of money. How to avoid throwing the baby (the system) out with the bathwater (party-lobbyist complex) is the problem of our times.
A well reasoned argument is like a diamond: impervious to corruption and crystal clear - and infinitely rarer.
Here, as elsewhere, people are outraged at what feels like a rigged game -- an economy that won't respond, a democracy that won't listen, and a financial sector that holds all the cards. - Robert Reich