To me, we need to reinforce the very basis of our democracy... if we can solidify democracy, the right to vote and afford proper representation, I do believe most of the rest will work itself out - because we will have representative governance that derives its power from the people - not corporations, not interests, not the Party. Because it's representative and encourages more democratic participation, the natural check on gov't run amock (be it executive overreach, corruption or just pandering to interests and self preservation) is the electorate itself.
1.Election Reform - Get rid of gerrymandering, and instead to to a simple, geometric calculation that utilizes geometries and populations to create appropriate and representative districts and provide safe, uniform and overarchingly simple to use voting practices to enable as many people who want to vote, to do so. Find ways for MORE to vote, rather than ways to exclude.
2. Campaign finance/structure reform - would need to work on the details, but (1) Corporations are not "people" and more importantly (2) must be transparency. I "get" the arguement that dollars are an extension of speech to a degree, but like anything, this power may need to be checked/regulated to provide some balance (while that strikes against my desired instinct, we've seen the outcome of what happens without it) and, more importantly, even if too much big money is in the game, it needs to be clear where that money came from. Also, put into place mechanisms that don't reinforce the two party oligarchy, to allow additional ideas and perspectives into the political arena. It's not a zero sum game in real life, nor should it be, politically.
3. Tax reform - simplify it, provide reason and rational for entrepreneurial endeavors but also encourage dollars to flow back into the system. Individual rates at the highest levels need to be adjusted up significantly, loopholes need to be eliminated (hell, find the right system where you don't have any deductions), tax churches and other such institutions unless they exist ONLY for charitable reasons and show that their main mission is to do good for others (at least so they can't be used as they are today, as basically tax sheilds for huge corporate endeavors that attribute wealth to a very few individuals all int he name of "charity" and "faith"); increase the estate taxes... why is it the next generation is "owed" the huge vast wealth accumulated prior? Doesn't have to be overbearing, but needs to be a lot greater than it is today, lest the playing field will never be even close to equal, and any discussion of true equality and access is rendered moot. There need be some reset, before things get so oligarchic the only eventual check on power will be a true revolt (not talking Riversco civil war, this is way down in the future, but unless we enable some flow of capital to all levels of our economy, things are eventually going to get ugly, and deservedly so - history has proven that when economic balance gets too far out of whack, they always do)
JFC I'm not banning it. A 50 cent tax! For FBGers, that's Monopoly money. 
