I'm not saying it's a perfect solution. But ideally, the way I might implement it, is to have some bureaus - one main government and three smaller agencies designed to watch the government. The government works as usual, elected by the people. The three agencies are also independently elected by the constituents, and if two parties agree, they can initiate a vote (then an election) against the third agency or the government itself - likewise, the government and an agency can agree to dissolve and cause an election for the two other agencies. The public can launch a motion for a vote any time - however all vote initiators will need to be proven not affiliated with any party in power or with any party that has initiated a vote in the last month (and such a process is to take no more than a week). That way, in theory, the general public could mill on with their lives in general, voting a few times a month; we'd have independent groups observing each other and the government of any signs of going against the public interest. Of course this, either, does not cover for lobbying and other corporate meddling (this is a very hard fight to fight with the current resources, and the only way I could see this being nullified by the US is by adopting a new currency, and limit the amount of currency that can be exchanged at base rate so that either the corporations will either need to deal with much less advantageous rates (possibly with a hard cap of how many new US currency could be "bought") to do that much political pressure or find other ways to do it - and that currency conversion has the advantage of also limiting how much extra capital can be done within the US - though to make things balanced and orderly, keep the Wall Street investment in old $US otherwise it would be too easy to manipulate the markets to transfer all $US to NUSC - though with a federally-controlled bank printing the money, instead of being a private bank, it might be a nil issue since there should be an actual limit to the amount of NUSC available, both digitally (as in, the government will authorize a certain amount of digital money that is not available in currency, and digital currency will only be able to be added in two ways: if an institution proves it has the physical currency in it's coffers, or if the government authorized it) and physically - though again, there will most likely be complications due to international debt - but then again, in an ideal world, it would be irrelevant because it would happen everywhere it needs to happen so a lot of debt can be forgiven, since a lot of it is money that never existed and isn't backed by anything (and only exists to magically create more money). Let the $US become an international transaction money if you want, but the US needs to take control of a currency again.) but at least it strongly discourages, if not straight out prevents corruption/public conflict of interest at the government level. Though I DID just remember that the United States techincally had 50 of these "agencies" in the form of state government - so, if we want to adapt this system without forcing the borders of states, it would take 3 sub-parties per state to do what I said, then all 50 state-governments get the power of the aforementioned agencies at a federal level - however this does mean that 26 states will need to agree to dissolve the government of any other state or the federal government, and put it back into election (though that number could vary to avoid a total shitfest of ideologies - possibly 30 states needed would be better).

Of course, I'm no political/economic/legal scientist or student, I'm a layman trying to make sense of this - but I feel that somewhere in that rant above there might be an idea that could work out.